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321 lines
179 KiB
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321 lines
179 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="G01C" definition-exists="true" date-revised="2021-08-01" status="published"><classification-symbol>G01C</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>MEASURING DISTANCES, LEVELS OR BEARINGS</text></title-part><title-part><text>SURVEYING</text></title-part><title-part><text>NAVIGATION</text></title-part><title-part><text>GYROSCOPIC INSTRUMENTS</text></title-part><title-part><text>PHOTOGRAMMETRY OR VIDEOGRAMMETRY </text><reference><text>measuring liquid level <class-ref scheme="cpc">G01F</class-ref>; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves <class-ref scheme="cpc">G01S</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following term is used with the meaning indicated: <subnote><note-paragraph>"navigation" means determining the position and course of land vehicles, ships, aircraft, and space vehicles.</note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to the Notes following the title of class <class-ref scheme="cpc">G01</class-ref>.</note-paragraph></note><note type="warning"><note-paragraph><CPC-specific-note>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</CPC-specific-note></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="G01C1/00" date-revised="2013-01-01" status="published"><classification-symbol>G01C1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C1/00" definition-exists="true" ipc-concordant="G01C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C1/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Measuring angles</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C1/02" definition-exists="true" ipc-concordant="G01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Theodolites</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C1/04" definition-exists="false" ipc-concordant="G01C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>combined with cameras</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C1/06" definition-exists="true" ipc-concordant="G01C1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C1/06</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Arrangements for reading scales</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C1/08" definition-exists="false" ipc-concordant="G01C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sextants</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C1/10" definition-exists="true" ipc-concordant="G01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C1/10</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>including an artificial horizon </text><reference><text><class-ref scheme="cpc">G01C1/14</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C1/12" definition-exists="true" ipc-concordant="G01C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C1/12</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>with a stabilised mirror</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C1/14" definition-exists="true" ipc-concordant="G01C1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C1/14</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Periscopic sextants</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C3/00" definition-exists="true" ipc-concordant="G01C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C3/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Measuring distances in line of sight</text></title-part><title-part><text>Optical rangefinders </text><reference><text>tapes, chains or wheels for measuring length <class-ref scheme="cpc">G01B3/00</class-ref>; active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves, <class-ref scheme="cpc">G01S17/48</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C3/02" definition-exists="false" ipc-concordant="G01C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/04" definition-exists="true" ipc-concordant="G01C3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C3/04</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Adaptation of rangefinders for combination with telescopes or binoculars</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/06" definition-exists="false" ipc-concordant="G01C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of electric means to obtain final indication</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C3/08" definition-exists="false" ipc-concordant="G01C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of electric radiation detectors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C3/085" definition-exists="true" ipc-concordant="G01C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with electronic parallax measurement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C3/10" definition-exists="true" ipc-concordant="G01C3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C3/10</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/12" definition-exists="false" ipc-concordant="G01C3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with monocular observation at a single point, e.g. coincidence type </text><reference><text><class-ref scheme="cpc">G01C3/20</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/14" definition-exists="false" ipc-concordant="G01C3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with binocular observation at a single point, e.g. stereoscopic type </text><reference><text><class-ref scheme="cpc">G01C3/20</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C3/16" definition-exists="false" ipc-concordant="G01C3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Measuring marks</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/18" definition-exists="false" ipc-concordant="G01C3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with one observation point at each end of the base </text><reference><text><class-ref scheme="cpc">G01C3/20</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/20" definition-exists="false" ipc-concordant="G01C3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with adaptation to the measurement of the height of an object</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C3/22" definition-exists="true" ipc-concordant="G01C3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C3/22</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by the object</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C3/24" definition-exists="true" ipc-concordant="G01C3/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C3/24</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>using a parallactic triangle with fixed angles and a base of variable length in the observation station, e.g. in the instrument</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C3/26" definition-exists="true" ipc-concordant="G01C3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C3/26</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C3/28" definition-exists="false" ipc-concordant="G01C3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with provision for reduction of the distance into the horizontal plane</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C3/30" definition-exists="false" ipc-concordant="G01C3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with adaptation to the measurement of the height of an object, e.g. tacheometers</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C3/32" definition-exists="false" ipc-concordant="G01C3/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C3/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by focusing the object, e.g. on a ground glass screen</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C5/00" definition-exists="true" ipc-concordant="G01C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C5/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Measuring height</text></title-part><title-part><text>Measuring distances transverse to line of sight</text></title-part><title-part><text>Levelling between separated points</text></title-part><title-part><text>Surveyors' levels </text><reference><text><class-ref scheme="cpc">G01C3/20</class-ref>, <class-ref scheme="cpc">G01C3/30</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C5/005" definition-exists="true" ipc-concordant="G01C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C5/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>altimeters for aircraft </text><reference><text><class-ref scheme="cpc">G01C5/02</class-ref>, <class-ref scheme="cpc">G01C5/06</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C5/02" definition-exists="true" ipc-concordant="G01C5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C5/02</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>involving automatic stabilisation of the line of sight</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C5/04" definition-exists="false" ipc-concordant="G01C5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C5/06" definition-exists="true" ipc-concordant="G01C5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C5/06</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>by using barometric means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C7/00" definition-exists="true" ipc-concordant="G01C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C7/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Tracing profiles </text><reference><text>by photogrammetry or videogrammetry <class-ref scheme="cpc">G01C11/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C7/02" definition-exists="true" ipc-concordant="G01C7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of land surfaces</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C7/04" definition-exists="false" ipc-concordant="G01C7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving a vehicle which moves along the profile to be traced</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C7/06" definition-exists="true" ipc-concordant="G01C7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C7/06</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>of cavities, e.g. tunnels</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C9/00" definition-exists="true" ipc-concordant="G01C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C9/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Measuring inclination, e.g. by clinometers, by levels</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C9/005" definition-exists="false" ipc-concordant="G01C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for use in aircraft</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C9/02" definition-exists="false" ipc-concordant="G01C9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C9/04" definition-exists="false" ipc-concordant="G01C9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Transmission means between sensing element and final indicator for giving an enlarged reading</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C9/06" definition-exists="false" ipc-concordant="G01C9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric or photoelectric indication or reading means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="G01C9/062" definition-exists="false" ipc-concordant="G01C9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>capacitive</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="G01C9/064" definition-exists="false" ipc-concordant="G01C9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inductive</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="G01C9/066" definition-exists="false" ipc-concordant="G01C9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>optical</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="G01C9/068" definition-exists="false" ipc-concordant="G01C9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>resistive</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C9/08" definition-exists="false" ipc-concordant="G01C9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for compensating acceleration forces due to movement of instrument</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C9/10" definition-exists="true" ipc-concordant="G01C9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C9/10</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>by using rolling bodies </text><CPC-specific-text><text>, e.g. spheres, cylinders, mercury droplets</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="G01C9/102" definition-exists="false" ipc-concordant="G01C9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="G01C9/105" definition-exists="false" ipc-concordant="G01C9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>mercury droplets</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="G01C9/107" definition-exists="false" ipc-concordant="G01C9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>spheres</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C9/12" definition-exists="true" ipc-concordant="G01C9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C9/12</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>by using a single pendulum </text><CPC-specific-text><text>plumb lines <class-ref scheme="cpc">G01C15/10</class-ref></text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C9/14" definition-exists="false" ipc-concordant="G01C9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>movable in more than one direction</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C9/16" definition-exists="false" ipc-concordant="G01C9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using more than one pendulum</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C9/18" definition-exists="false" ipc-concordant="G01C9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using liquids</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="G01C9/182" definition-exists="false" ipc-concordant="G01C9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>conductive</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="G01C9/185" definition-exists="false" ipc-concordant="G01C9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>dielectric</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="G01C9/187" definition-exists="false" ipc-concordant="G01C9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C2009/187</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>magnetic, e.g. ferromagnetic</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C9/20" definition-exists="true" ipc-concordant="G01C9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the indication being based on the inclination of the surface of a liquid relative to its container</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C9/22" definition-exists="false" ipc-concordant="G01C9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with interconnected containers in fixed relation to each other</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C9/24" definition-exists="false" ipc-concordant="G01C9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in closed containers partially filled with liquid so as to leave a gas bubble</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C9/26" definition-exists="false" ipc-concordant="G01C9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C9/28" definition-exists="true" ipc-concordant="G01C9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mountings</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C9/30" definition-exists="false" ipc-concordant="G01C9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for adjusting dimensions of bubble</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C9/32" definition-exists="true" ipc-concordant="G01C9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for facilitating the observation of the position of the bubble, e.g. illuminating means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C9/34" definition-exists="false" ipc-concordant="G01C9/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the tubular type, i.e. for indicating the level in one direction only</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C9/36" definition-exists="false" ipc-concordant="G01C9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C9/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the spherical type, i.e. for indicating the level in all directions</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C11/00" definition-exists="true" ipc-concordant="G01C11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C11/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Photogrammetry or videogrammetry, e.g. stereogrammetry</text></title-part><title-part><text>Photographic surveying</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C11/02" definition-exists="true" ipc-concordant="G01C11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C11/025" definition-exists="false" ipc-concordant="G01C11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by scanning the object</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C11/04" definition-exists="true" ipc-concordant="G01C11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Interpretation of pictures</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C11/06" definition-exists="true" ipc-concordant="G01C11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by comparison of two or more pictures of the same area</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C11/08" definition-exists="false" ipc-concordant="G01C11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pictures not being supported in the same relative position as when they were taken</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C11/10" definition-exists="false" ipc-concordant="G01C11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C11/10</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>using computers to control the position of the pictures</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C11/12" definition-exists="false" ipc-concordant="G01C11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pictures being supported in the same relative position as when they were taken</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C11/14" definition-exists="false" ipc-concordant="G01C11/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with optical projection </text><reference><text><class-ref scheme="cpc">G01C11/26</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C11/16" definition-exists="false" ipc-concordant="G01C11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a common plane</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="G01C11/18" definition-exists="false" ipc-concordant="G01C11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving scanning means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C11/20" definition-exists="false" ipc-concordant="G01C11/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in separate planes</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C11/22" definition-exists="false" ipc-concordant="G01C11/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with mechanical projection </text><reference><text><class-ref scheme="cpc">G01C11/26</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C11/24" definition-exists="false" ipc-concordant="G01C11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with optical-mechanical projection </text><reference><text><class-ref scheme="cpc">G01C11/26</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C11/26" definition-exists="false" ipc-concordant="G01C11/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C11/26</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>using computers to control the position of the pictures</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C11/28" definition-exists="false" ipc-concordant="G01C11/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special adaptation for recording picture point data, e.g. for profiles</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C11/30" definition-exists="false" ipc-concordant="G01C11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by triangulation</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C11/32" definition-exists="false" ipc-concordant="G01C11/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radial triangulation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C11/34" definition-exists="false" ipc-concordant="G01C11/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C11/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aerial triangulation</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C11/36" definition-exists="false" ipc-concordant="G01C11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-08-01" status="published"><classification-symbol>G01C11/36</classification-symbol><class-title date-revised="2021-08-01"><title-part><text>Videogrammetry, i.e. electronic processing of video signals </text><CPC-specific-text><text>from a single source or </text></CPC-specific-text><text> from different sources to give parallax or range information</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C13/00" definition-exists="true" ipc-concordant="G01C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C13/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Surveying specially adapted to open water, e.g. sea, lake, river or canal </text><reference><text>liquid level metering <class-ref scheme="cpc">G01F</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C13/002" definition-exists="false" ipc-concordant="G01C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C13/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Measuring the movement of open water</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C13/004" definition-exists="false" ipc-concordant="G01C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C13/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>vertical movement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C13/006" definition-exists="false" ipc-concordant="G01C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C13/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>horizontal movement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C13/008" definition-exists="true" ipc-concordant="G01C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C13/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>measuring depth of open water</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C15/00" definition-exists="true" ipc-concordant="G01C15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G01C15/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Surveying instruments or accessories not provided for in groups <class-ref scheme="cpc">G01C1/00</class-ref> - <class-ref scheme="cpc">G01C13/00</class-ref></text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C15/002" definition-exists="true" ipc-concordant="G01C15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Active optical surveying means </text><reference><text>optical plumbing <class-ref scheme="cpc">G01C15/105</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C15/004" definition-exists="true" ipc-concordant="G01C15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Reference lines, planes or sectors</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C15/006" definition-exists="false" ipc-concordant="G01C15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Detectors therefor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C15/008" definition-exists="true" ipc-concordant="G01C15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with inclination sensor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C15/02" definition-exists="true" ipc-concordant="G01C15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for marking measuring points</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C15/04" definition-exists="false" ipc-concordant="G01C15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Permanent marks</text></title-part><title-part><text>Boundary markers</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C15/06" definition-exists="true" ipc-concordant="G01C15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Surveyors' staffs</text></title-part><title-part><text>Movable markers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C15/08" definition-exists="false" ipc-concordant="G01C15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plumbing or registering staffs or markers over ground marks</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C15/10" definition-exists="true" ipc-concordant="G01C15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plumb lines</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C15/105" definition-exists="true" ipc-concordant="G01C15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Optical plumbing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C15/12" definition-exists="false" ipc-concordant="G01C15/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C15/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Instruments for setting out fixed angles, e.g. right angles</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C15/14" definition-exists="true" ipc-concordant="G01C15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C15/14</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Artificial horizons</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C17/00" definition-exists="true" ipc-concordant="G01C17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C17/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Compasses</text></title-part><title-part><text>Devices for ascertaining true or magnetic north for navigation or surveying purposes </text><reference><text>using gyroscopic effect <class-ref scheme="cpc">G01C19/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C17/02" definition-exists="false" ipc-concordant="G01C17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnetic compasses</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C17/04" definition-exists="false" ipc-concordant="G01C17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with north-seeking magnetic elements, e.g. needles</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C17/06" definition-exists="false" ipc-concordant="G01C17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Suspending magnetic elements</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/08" definition-exists="false" ipc-concordant="G01C17/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by flotation</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C17/10" definition-exists="false" ipc-concordant="G01C17/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Comparing observed direction with north indication</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/12" definition-exists="false" ipc-concordant="G01C17/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by sighting means, e.g. for surveyors' compasses</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/14" definition-exists="false" ipc-concordant="G01C17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by reference marks, e.g. for ships' compasses</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/16" definition-exists="false" ipc-concordant="G01C17/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by clinometers, e.g. for determining dip or strike of geological strata</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C17/18" definition-exists="false" ipc-concordant="G01C17/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supporting or suspending compasses, e.g. by gimbal, by flotation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C17/20" definition-exists="false" ipc-concordant="G01C17/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Observing the compass card or needle</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/22" definition-exists="false" ipc-concordant="G01C17/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by projection</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/24" definition-exists="false" ipc-concordant="G01C17/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Illumination</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C17/26" definition-exists="false" ipc-concordant="G01C17/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using electric pick-offs for transmission to final indicator, e.g. photocell</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C17/28" definition-exists="true" ipc-concordant="G01C17/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electromagnetic compasses </text><reference><text>with north seeking magnetic elements and having electric pick-offs <class-ref scheme="cpc">G01C17/26</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C17/30" definition-exists="true" ipc-concordant="G01C17/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Earth-inductor compasses</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C17/32" definition-exists="false" ipc-concordant="G01C17/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electron compasses</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C17/34" definition-exists="true" ipc-concordant="G01C17/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C17/34</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Sun- or astro-compasses</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C17/36" definition-exists="false" ipc-concordant="G01C17/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Repeaters for remote indication of readings of a master compass</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C17/38" definition-exists="false" ipc-concordant="G01C17/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C17/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Testing, calibrating, or compensating of compasses</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C19/00" definition-exists="true" ipc-concordant="G01C19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gyroscopes</text></title-part><title-part><text>Turn-sensitive devices using vibrating masses</text></title-part><title-part><text>Turn-sensitive devices without moving masses</text></title-part><title-part><text>Measuring angular rate using gyroscopic effects</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C19/005" definition-exists="false" ipc-concordant="G01C19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C19/005</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Measuring angular rate using gyroscopic effects</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C19/005</class-ref> is incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01P9/00</class-ref>, <class-ref scheme="cpc">G01P9/02</class-ref> and <class-ref scheme="cpc">G01P9/04</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C19/02" definition-exists="false" ipc-concordant="G01C19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary gyroscopes</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">G01C19/02</class-ref>, <class-ref scheme="cpc">G01C19/025</class-ref>, <class-ref scheme="cpc">G01C19/04</class-ref>, <class-ref scheme="cpc">G01C19/06</class-ref>, <class-ref scheme="cpc">G01C19/08</class-ref>, <class-ref scheme="cpc">G01C19/10</class-ref>, <class-ref scheme="cpc">G01C19/12</class-ref>, <class-ref scheme="cpc">G01C19/14</class-ref>, <class-ref scheme="cpc">G01C19/16</class-ref>, <class-ref scheme="cpc">G01C19/18</class-ref>, <class-ref scheme="cpc">G01C19/20</class-ref>, <class-ref scheme="cpc">G01C19/22</class-ref>, <class-ref scheme="cpc">G01C19/24</class-ref>, <class-ref scheme="cpc">G01C19/26</class-ref>, <class-ref scheme="cpc">G01C19/28</class-ref>, <class-ref scheme="cpc">G01C19/30</class-ref>, <class-ref scheme="cpc">G01C19/32</class-ref>, <class-ref scheme="cpc">G01C19/34</class-ref>, <class-ref scheme="cpc">G01C19/36</class-ref>, <class-ref scheme="cpc">G01C19/38</class-ref>, <class-ref scheme="cpc">G01C19/40</class-ref>, <class-ref scheme="cpc">G01C19/42</class-ref>, <class-ref scheme="cpc">G01C19/44</class-ref>, <class-ref scheme="cpc">G01C19/46</class-ref>, <class-ref scheme="cpc">G01C19/48</class-ref>, <class-ref scheme="cpc">G01C19/50</class-ref>, <class-ref scheme="cpc">G01C19/52</class-ref> and <class-ref scheme="cpc">G01C19/54</class-ref> are incomplete pending reclassification of documents from group <class-ref scheme="cpc">G01P9/02</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/025" definition-exists="true" ipc-concordant="G01C19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C19/025</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Gyroscopes functioning for short periods</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/04" definition-exists="false" ipc-concordant="G01C19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/06" definition-exists="false" ipc-concordant="G01C19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/065" definition-exists="true" ipc-concordant="G01C19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C19/065</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Means for measuring or controlling of rotors' angular velocity</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C19/065</class-ref> is incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01P9/00</class-ref> and <class-ref scheme="cpc">G01P9/02</class-ref>.<br/>Groups <class-ref scheme="cpc">G01P9/00</class-ref>, <class-ref scheme="cpc">G01P9/02</class-ref> and <class-ref scheme="cpc">G01C19/065</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/08" definition-exists="true" ipc-concordant="G01C19/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/08</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>electrically driven </text><reference><text><class-ref scheme="cpc">G01C19/14</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/10" definition-exists="false" ipc-concordant="G01C19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power supply</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/12" definition-exists="false" ipc-concordant="G01C19/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>fluid driven </text><reference><text><class-ref scheme="cpc">G01C19/14</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/14" definition-exists="false" ipc-concordant="G01C19/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid rotors</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/16" definition-exists="true" ipc-concordant="G01C19/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/16</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Suspensions</text></title-part><title-part><text>Bearings</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/18" definition-exists="false" ipc-concordant="G01C19/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/18</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>providing movement of rotor with respect to its rotational axes </text><reference><text><class-ref scheme="cpc">G01C19/20</class-ref>, <class-ref scheme="cpc">G01C19/24</class-ref> take precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/20" definition-exists="false" ipc-concordant="G01C19/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in fluid</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/22" definition-exists="true" ipc-concordant="G01C19/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>torsional</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/24" definition-exists="false" ipc-concordant="G01C19/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using magnetic or electrostatic fields</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/26" definition-exists="true" ipc-concordant="G01C19/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/26</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Caging, i.e. immobilising moving parts, e.g. for transport</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/28" definition-exists="false" ipc-concordant="G01C19/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pick-offs, i.e. devices for taking-off an indication of the displacement of the rotor axis</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/30" definition-exists="true" ipc-concordant="G01C19/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Erection devices, i.e. devices for restoring rotor axis to a desired position </text><reference><text>for instrument indicating the vertical <class-ref scheme="cpc">G01C19/46</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/32" definition-exists="true" ipc-concordant="G01C19/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/32</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Indicating or recording means specially adapted for rotary gyroscopes</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/34" definition-exists="false" ipc-concordant="G01C19/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for indicating a direction in the horizontal plane, e.g. directional gyroscopes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/36" definition-exists="true" ipc-concordant="G01C19/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with north-seeking action by magnetic means, e.g. gyromagnetic compasses</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/38" definition-exists="false" ipc-concordant="G01C19/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/40" definition-exists="false" ipc-concordant="G01C19/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for control by signals from a master compass, i.e. repeater compasses</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/42" definition-exists="false" ipc-concordant="G01C19/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for indicating rate of turn</text></title-part><title-part><text>for integrating rate of turn</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/44" definition-exists="false" ipc-concordant="G01C19/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for indicating the vertical</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/46" definition-exists="false" ipc-concordant="G01C19/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Erection devices for restoring rotor axis to a desired position</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/48" definition-exists="false" ipc-concordant="G01C19/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operating by electrical means </text><reference><text><class-ref scheme="cpc">G01C19/54</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/50" definition-exists="false" ipc-concordant="G01C19/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operating by mechanical means </text><reference><text><class-ref scheme="cpc">G01C19/54</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/52" definition-exists="false" ipc-concordant="G01C19/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operating by fluid means </text><reference><text><class-ref scheme="cpc">G01C19/54</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/54" definition-exists="false" ipc-concordant="G01C19/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with correction for acceleration forces due to movement of instrument</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C19/56" definition-exists="true" ipc-concordant="G01C19/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C19/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">G01C19/56</class-ref> - <class-ref scheme="cpc">G01C19/5783</class-ref> are incomplete pending reclassification of documents from group <class-ref scheme="cpc">G01P9/04</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5607" definition-exists="true" ipc-concordant="G01C19/5607" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5607</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using vibrating tuning forks </text><reference><text>double-ended tuning forks using planar vibrating masses suspended at opposite ends <class-ref scheme="cpc">G01C19/5719</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5614" definition-exists="false" ipc-concordant="G01C19/5614" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5614</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Signal processing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5621" definition-exists="false" ipc-concordant="G01C19/5621" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G01C19/5621</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>the devices involving a micromechanical structure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5628" definition-exists="false" ipc-concordant="G01C19/5628" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5628</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacturing</text></title-part><title-part><text>Trimming</text></title-part><title-part><text>Mounting</text></title-part><title-part><text>Housings</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5635" definition-exists="false" ipc-concordant="G01C19/5635" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5635</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using vibrating wires or strings</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5642" definition-exists="true" ipc-concordant="G01C19/5642" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5642</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using vibrating bars or beams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5649" definition-exists="false" ipc-concordant="G01C19/5649" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5649</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Signal processing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5656" definition-exists="false" ipc-concordant="G01C19/5656" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G01C19/5656</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>the devices involving a micromechanical structure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5663" definition-exists="false" ipc-concordant="G01C19/5663" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5663</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacturing</text></title-part><title-part><text>Trimming</text></title-part><title-part><text>Mounting</text></title-part><title-part><text>Housings</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/567" definition-exists="false" ipc-concordant="G01C19/567" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/567</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using the phase shift of a vibration node or antinode</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5677" definition-exists="true" ipc-concordant="G01C19/5677" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5677</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of essentially two-dimensional vibrators, e.g. ring-shaped vibrators</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/5684" definition-exists="false" ipc-concordant="G01C19/5684" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G01C19/5684</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>the devices involving a micromechanical structure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5691" definition-exists="false" ipc-concordant="G01C19/5691" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5691</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of essentially three-dimensional vibrators, e.g. wine glass-type vibrators</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5698" definition-exists="true" ipc-concordant="G01C19/5698" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5698</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using acoustic waves, e.g. surface acoustic wave gyros</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5705" definition-exists="false" ipc-concordant="G01C19/5705" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5705</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using masses driven in reciprocating rotary motion about an axis</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5712" definition-exists="false" ipc-concordant="G01C19/5712" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G01C19/5712</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>the devices involving a micromechanical structure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5719" definition-exists="false" ipc-concordant="G01C19/5719" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5719</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using planar vibrating masses driven in a translation vibration along an axis</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5726" definition-exists="false" ipc-concordant="G01C19/5726" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5726</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Signal processing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5733" definition-exists="false" ipc-concordant="G01C19/5733" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5733</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Structural details or topology</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/574" definition-exists="false" ipc-concordant="G01C19/574" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/574</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the devices having two sensing masses in anti-phase motion</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/5747" definition-exists="false" ipc-concordant="G01C19/5747" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5747</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>each sensing mass being connected to a driving mass, e.g. driving frames</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/5755" definition-exists="false" ipc-concordant="G01C19/5755" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5755</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the devices having a single sensing mass</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/5762" definition-exists="false" ipc-concordant="G01C19/5762" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5762</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the sensing mass being connected to a driving mass, e.g. driving frames</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/5769" definition-exists="false" ipc-concordant="G01C19/5769" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/5769</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacturing</text></title-part><title-part><text>Mounting</text></title-part><title-part><text>Housings</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5776" definition-exists="false" ipc-concordant="G01C19/5776" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>G01C19/5776</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Signal processing not specific to any of the devices covered by groups <class-ref scheme="cpc">G01C19/5607</class-ref> - <class-ref scheme="cpc">G01C19/5719</class-ref></text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/5783" definition-exists="false" ipc-concordant="G01C19/5783" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>G01C19/5783</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Mountings or housings not specific to any of the devices covered by groups <class-ref scheme="cpc">G01C19/5607</class-ref> - <class-ref scheme="cpc">G01C19/5719</class-ref></text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C19/58" definition-exists="true" ipc-concordant="G01C19/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Turn-sensitive devices without moving masses</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/60" definition-exists="true" ipc-concordant="G01C19/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/60</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Electronic or nuclear magnetic resonance gyrometers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/62" definition-exists="false" ipc-concordant="G01C19/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with optical pumping</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C19/64" definition-exists="false" ipc-concordant="G01C19/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/66" definition-exists="true" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/66</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Ring laser gyrometers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/661" definition-exists="false" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/661</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>details</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/662" definition-exists="true" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/662</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>signal readout; dither compensators</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="G01C19/664" definition-exists="true" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/664</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>means for removing the dither signal</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/665" definition-exists="true" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C19/665</classification-symbol><class-title date-revised="2019-08-01"><title-part><CPC-specific-text><text>control of the cavity </text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/667" definition-exists="false" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/667</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a multioscillator ring laser</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/668" definition-exists="false" ipc-concordant="G01C19/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/668</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies for measuring along different axes, e.g. triads</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/68" definition-exists="false" ipc-concordant="G01C19/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lock-in prevention</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/70" definition-exists="false" ipc-concordant="G01C19/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by mechanical means</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C19/72" definition-exists="true" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/721" definition-exists="true" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/721</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C19/722" definition-exists="true" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/722</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the mechanical construction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/723" definition-exists="false" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/723</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heterodyning fibre optic gyrometers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/725" definition-exists="true" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/725</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using nxn optical couplers, e.g. 3x3 couplers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/726" definition-exists="false" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/726</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phase nulling gyrometers, i.e. compensating the Sagnac phase shift in a closed loop system</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/727" definition-exists="true" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/727</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a passive ring resonator</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C19/728" definition-exists="false" ipc-concordant="G01C19/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C19/728</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies for measuring along different axes, e.g. triads</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C21/00" definition-exists="true" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/00</classification-symbol><class-title date-revised="2020-08-01"><title-part><text>Navigation</text></title-part><title-part><text>Navigational instruments not provided for in groups <class-ref scheme="cpc">G01C1/00</class-ref> - <class-ref scheme="cpc">G01C19/00</class-ref> </text><reference><text>measuring distance traversed on the ground by a vehicle <class-ref scheme="cpc">G01C22/00</class-ref>; control of position, course, altitude or attitude of vehicles <class-ref scheme="cpc">G05D1/00</class-ref>; traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle <class-ref scheme="cpc">G08G1/0968</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">G01C21/00</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">G01C21/38</class-ref> - <class-ref scheme="cpc">G01C21/3896</class-ref>. <br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/005" definition-exists="true" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with correlation of navigation data from several sources, e.g. map or contour matching </text><reference><text><class-ref scheme="cpc">G01C21/30</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/02" definition-exists="true" ipc-concordant="G01C21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C21/02</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>by astronomical means </text><reference><text><class-ref scheme="cpc">G01C21/24</class-ref>, <class-ref scheme="cpc">G01C21/26</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/025" definition-exists="false" ipc-concordant="G01C21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with the use of startrackers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/04" definition-exists="true" ipc-concordant="G01C21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C21/04</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>by terrestrial means </text><reference><text><class-ref scheme="cpc">G01C21/24</class-ref>, <class-ref scheme="cpc">G01C21/26</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/06" definition-exists="false" ipc-concordant="G01C21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving measuring of drift angle</text></title-part><title-part><text>involving correction for drift</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/08" definition-exists="false" ipc-concordant="G01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving use of the magnetic field of the earth</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/10" definition-exists="true" ipc-concordant="G01C21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using measurements of speed or acceleration </text><reference><text><class-ref scheme="cpc">G01C21/24</class-ref>, <class-ref scheme="cpc">G01C21/26</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/12" definition-exists="false" ipc-concordant="G01C21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>executed aboard the object being navigated</text></title-part><title-part><text>Dead reckoning</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/14" definition-exists="true" ipc-concordant="G01C21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by recording the course traversed by the object </text><reference><text><class-ref scheme="cpc">G01C21/16</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/16" definition-exists="true" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C21/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by integrating acceleration or speed, i.e. inertial navigation</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">G01C21/16</class-ref> - <class-ref scheme="cpc">G01C21/188</class-ref> are incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01P9/00</class-ref>, <class-ref scheme="cpc">G01P9/02</class-ref> and <class-ref scheme="cpc">G01P9/04</class-ref>.<br/>All groups listed in this Warning should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/165" definition-exists="true" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combined with non-inertial navigation instruments</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">G01C21/165</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">G01C21/1652</class-ref>, <class-ref scheme="cpc">G01C21/1654</class-ref>, and <class-ref scheme="cpc">G01C21/1656</class-ref>. <br/>Groups <class-ref scheme="cpc">G01C21/165</class-ref>, <class-ref scheme="cpc">G01C21/1652</class-ref>, <class-ref scheme="cpc">G01C21/1654</class-ref>, and <class-ref scheme="cpc">G01C21/1656</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/1652" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/1652</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>with ranging devices, e.g. LIDAR or RADAR</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/1652</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">G01C21/165</class-ref>. <br/>Groups <class-ref scheme="cpc">G01C21/165</class-ref> and <class-ref scheme="cpc">G01C21/1652</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/1654" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/1654</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>with electromagnetic compass</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/1654</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">G01C21/165</class-ref>. <br/>Groups <class-ref scheme="cpc">G01C21/165</class-ref> and <class-ref scheme="cpc">G01C21/1654</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/1656" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/1656</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>with passive imaging devices, e.g. cameras</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/1656</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">G01C21/165</class-ref>. <br/>Groups <class-ref scheme="cpc">G01C21/165</class-ref> and <class-ref scheme="cpc">G01C21/1656</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/166" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/166</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Mechanical, construction or arrangement details of inertial navigation systems</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/166</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">G01C21/16</class-ref>.<br/>Groups <class-ref scheme="cpc">G01C21/16</class-ref> and <class-ref scheme="cpc">G01C21/166</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/18" definition-exists="true" ipc-concordant="G01C21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stabilised platforms, e.g. by gyroscope</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/183" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/183</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Compensation of inertial measurements, e.g. for temperature effects</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/183</class-ref> is incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01C21/16</class-ref>.<br/>Groups <class-ref scheme="cpc">G01C21/16</class-ref> and <class-ref scheme="cpc">G01C21/183</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/185" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/185</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>for gravity</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/185</class-ref> is incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01C21/16</class-ref>. <br/>Groups <class-ref scheme="cpc">G01C21/16</class-ref> and <class-ref scheme="cpc">G01C21/185</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/188" definition-exists="false" ipc-concordant="G01C21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/188</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>for accumulated errors, e.g. by coupling inertial systems with absolute positioning systems</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">G01C21/188</class-ref> is incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01C21/16</class-ref>.<br/>Groups <class-ref scheme="cpc">G01C21/16</class-ref> and <class-ref scheme="cpc">G01C21/188</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/20" definition-exists="true" ipc-concordant="G01C21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-02-01" status="published"><classification-symbol>G01C21/20</classification-symbol><class-title date-revised="2019-02-01"><title-part><text>Instruments for performing navigational calculations </text><reference><text><class-ref scheme="cpc">G01C21/24</class-ref>, <class-ref scheme="cpc">G01C21/26</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/203" definition-exists="true" ipc-concordant="G01C21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Specially adapted for sailing ships</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/206" definition-exists="false" ipc-concordant="G01C21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for indoor navigation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/22" definition-exists="true" ipc-concordant="G01C21/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C21/22</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Plotting boards</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/24" definition-exists="false" ipc-concordant="G01C21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for cosmonautical navigation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/26" definition-exists="true" ipc-concordant="G01C21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for navigation in a road network</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/265" definition-exists="false" ipc-concordant="G01C21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>constructional aspects of navigation devices, e.g. housings, mountings, displays </text><reference><text><class-ref scheme="cpc">G01C21/3688</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/28" definition-exists="true" ipc-concordant="G01C21/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with correlation of data from several navigational instruments</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/30" definition-exists="true" ipc-concordant="G01C21/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Map- or contour-matching</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/32" definition-exists="true" ipc-concordant="G01C21/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Structuring or formatting of map data</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">G01C21/32</class-ref> is impacted by reclassification into groups <class-ref scheme="cpc">G01C21/38</class-ref> - <class-ref scheme="cpc">G01C21/3896</class-ref>.<br/>Groups <class-ref scheme="cpc">G01C21/32</class-ref> and <class-ref scheme="cpc">G01C21/38</class-ref> - <class-ref scheme="cpc">G01C21/3896</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/34" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Route searching</text></title-part><title-part><text>Route guidance</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3407" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3407</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for specific applications</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3415" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3415</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3423" definition-exists="false" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>G01C21/3423</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>Multimodal routing, i.e. combining two or more modes of transportation, where the modes can be any of, e.g. driving, walking, cycling, public transport</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/343" definition-exists="false" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/343</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calculating itineraries, i.e. routes leading from a starting point to a series of categorical destinations using a global route restraint, round trips, touristic trips </text><reference><text>travelling salesman problem <class-ref scheme="cpc">G06Q10/04</class-ref>; optimisation of routes <class-ref scheme="cpc">G06Q10/047</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3438" definition-exists="false" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3438</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rendez-vous, i.e. searching a destination where several users can meet, and the routes to this destination for these users; Ride sharing, i.e. searching a route such that at least two users can share a vehicle for at least part of the route</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3446" definition-exists="false" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3446</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details of route searching algorithms, e.g. Dijkstra, A*, arc-flags, using precalculated routes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3453" definition-exists="false" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3453</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special cost functions, i.e. other than distance or default speed limit of road segments</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3461" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3461</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3469" definition-exists="false" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3469</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fuel consumption; Energy use; Emission aspects</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3476" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using point of interest [POI] information, e.g. a route passing visible POIs</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3484" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3484</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Personalized, e.g. from learned user behaviour or user-defined profiles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3492" definition-exists="true" ipc-concordant="G01C21/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3492</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>employing speed data or traffic data, e.g. real-time or historical </text><reference><text>traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle <class-ref scheme="cpc">G08G1/0968</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/36" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C21/36</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Input/output arrangements for on-board computers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3602" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C21/3602</classification-symbol><class-title date-revised="2019-08-01"><title-part><CPC-specific-text><text>Input other than that of destination using image analysis, e.g. detection of road signs, lanes, buildings, real preceding vehicles using a camera</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3605" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Destination input or retrieval</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3608" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C21/3608</classification-symbol><class-title date-revised="2019-08-01"><title-part><CPC-specific-text><text>using speech input, e.g. using speech recognition</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3611" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3611</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using character input or menus, e.g. menus of POIs </text><reference><text>character input methods in general <class-ref scheme="cpc">G06F3/0233</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3614" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3614</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>through interaction with a road map, e.g. selecting a POI icon on a road map</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3617" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3617</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using user history, behaviour, conditions or preferences, e.g. predicted or inferred from previous use or current movement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/362" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/362</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>received from an external device or application, e.g. PDA, mobile phone or calendar application</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3623" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3623</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a camera or code reader, e.g. for optical or magnetic codes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3626" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G01C21/3626</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Details of the output of route guidance instructions </text><reference><text>traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle <class-ref scheme="cpc">G08G1/0968</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3629" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3629</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance using speech or audio output, e.g. text-to-speech </text><reference><text>text to speech systems <u>per se</u> <class-ref scheme="cpc">G10L13/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3632" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3632</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance using simplified or iconic instructions, e.g. using arrows </text><reference><text><class-ref scheme="cpc">G01C21/365</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3635" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3635</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance using 3D or perspective road maps</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="G01C21/3638" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-11-01" status="published"><classification-symbol>G01C21/3638</classification-symbol><class-title date-revised="2015-11-01"><title-part><CPC-specific-text><text>including 3D objects and buildings </text><reference><text>three dimensional [3D] modelling, e.g. data description of 3D objects <class-ref scheme="cpc">G06T17/00</class-ref>; geographic models <class-ref scheme="cpc">G06T17/05</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3641" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3641</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Personalized guidance, e.g. limited guidance on previously travelled routes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3644" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3644</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Landmark guidance, e.g. using POIs or conspicuous other objects</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3647" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3647</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance involving output of stored or live camera images or video streams</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/365" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3652" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3652</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance using non-audiovisual output, e.g. tactile, haptic or electric stimuli</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3655" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3655</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Timing of guidance instructions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3658" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3658</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lane guidance</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3661" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3661</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guidance output on an external device, e.g. car radio</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3664" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3664</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details of the user input interface, e.g. buttons, knobs or sliders, including those provided on a touch screen; remote controllers; input using gestures</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3667" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3667</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Display of a road map </text><reference><text><class-ref scheme="cpc">G01C21/3614</class-ref> takes precedence; guidance using 3D or perspective road maps <class-ref scheme="cpc">G01C21/3635</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/367" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/367</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3673" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3673</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Labelling using text of road map data items, e.g. road names, POI names</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3676" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Overview of the route on the road map</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3679" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3679</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities </text><reference><text><class-ref scheme="cpc">G01C21/3611</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3682" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3682</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>output of POI information on a road map </text><reference><text><class-ref scheme="cpc">G01C21/3614</class-ref>, <class-ref scheme="cpc">G01C21/3685</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3685" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3685</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the POI's being parking facilities</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3688" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3688</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3691" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3691</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions </text><reference><text>arrangements for giving variable traffic instructions <class-ref scheme="cpc">G08G1/09</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3694" definition-exists="false" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C21/3694</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Output thereof on a road map</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3697" definition-exists="true" ipc-concordant="G01C21/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3697</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Output of additional, non-guidance related information, e.g. low fuel level </text><reference><text><class-ref scheme="cpc">G01C21/3679</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C21/38" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/38</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Electronic maps specially adapted for navigation; Updating thereof</text></CPC-specific-text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Groups <class-ref scheme="cpc">G01C21/38</class-ref> - <class-ref scheme="cpc">G01C21/3896</class-ref> are incomplete pending reclassification of documents from groups <class-ref scheme="cpc">G01C21/00</class-ref> and <class-ref scheme="cpc">G01C21/32</class-ref>. <br/>Groups <class-ref scheme="cpc">G01C21/00</class-ref>, <class-ref scheme="cpc">G01C21/32</class-ref>, and <class-ref scheme="cpc">G01C21/38</class-ref> - <class-ref scheme="cpc">G01C21/3896</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/3804" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3804</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Creation or updating of map data</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3807" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3807</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>characterised by the type of data</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3811" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3811</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Point data, e.g. Point of Interest [POI]</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3815" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3815</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Road data</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3819" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3819</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Road shape data, e.g. outline of a route</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="G01C21/3822" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3822</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Road feature data, e.g. slope data</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3826" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3826</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Terrain data</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/383" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/383</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Indoor data</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3833" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3833</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>characterised by the source of data</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3837" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3837</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Data obtained from a single source</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3841" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3841</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Data obtained from two or more sources, e.g. probe vehicles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3844" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3844</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Data obtained from position sensors only, e.g. from inertial navigation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3848" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3848</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Data obtained from both position sensors and additional sensors</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3852" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3852</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Data derived from aerial or satellite images</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3856" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3856</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Data obtained from user input</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3859" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3859</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Differential updating map data</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/3863" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3863</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Structures of map data</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3867" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3867</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Geometry of map features, e.g. shape points, polygons or for simplified maps</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/387" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/387</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Organisation of map data, e.g. version management or database structures</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3874" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3874</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Structures specially adapted for data searching and retrieval</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3878" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3878</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Hierarchical structures, e.g. layering</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="G01C21/3881" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3881</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Tile-based structures</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C21/3885" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3885</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Transmission of map data to client devices; Reception of map data by client devices</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3889" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3889</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Transmission of selected map data, e.g. depending on route</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3893" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3893</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Transmission of map data from distributed sources, e.g. from roadside stations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G01C21/3896" definition-exists="false" ipc-concordant="G01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-08-01" status="published"><classification-symbol>G01C21/3896</classification-symbol><class-title date-revised="2020-08-01"><title-part><CPC-specific-text><text>Transmission of map data from central databases</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C22/00" definition-exists="true" ipc-concordant="G01C22/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C22/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C22/002" definition-exists="true" ipc-concordant="G01C22/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C22/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for cycles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C22/004" definition-exists="true" ipc-concordant="G01C22/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C22/004</classification-symbol><class-title date-revised="2019-08-01"><title-part><CPC-specific-text><text>for golf carts </text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C22/006" definition-exists="true" ipc-concordant="G01C22/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C22/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pedometers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C22/008" definition-exists="true" ipc-concordant="G01C22/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C22/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for skates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C22/02" definition-exists="true" ipc-concordant="G01C22/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C22/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by conversion into electric waveforms and subsequent integration, e.g. using tachometer generator </text><CPC-specific-text><reference><text><class-ref scheme="cpc">G01C22/002</class-ref>, <class-ref scheme="cpc">G01C22/004</class-ref>, <class-ref scheme="cpc">G01C22/006</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G01C22/025" definition-exists="true" ipc-concordant="G01C22/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C22/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Differential odometers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C23/00" definition-exists="true" ipc-concordant="G01C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>G01C23/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Combined instruments indicating more than one navigational value, e.g. for aircraft</text></title-part><title-part><text>Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C23/005" definition-exists="true" ipc-concordant="G01C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C23/005</classification-symbol><class-title date-revised="2019-08-01"><title-part><CPC-specific-text><text>Flight directors </text><reference><text>indicating arrangements specially adapted for rotary gyroscopes <class-ref scheme="cpc">G01C19/32</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G01C25/00" definition-exists="true" ipc-concordant="G01C25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>G01C25/00</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass </text><reference><text>testing, calibrating or compensating compasses <class-ref scheme="cpc">G01C17/38</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="G01C25/005" definition-exists="false" ipc-concordant="G01C25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G01C25/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>initial alignment, calibration or starting-up of inertial devices</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme> |