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173 lines
92 KiB
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173 lines
92 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="F02K" definition-exists="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>JET-PROPULSION PLANTS </text><reference><text>features of jet-propulsion plants common to gas-turbine plants, air intakes or fuel supply control of air-breathing jet-propulsion plants <class-ref scheme="cpc">F02C7/00</class-ref>, <class-ref scheme="cpc">F02C9/00</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 expression is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"jet-propulsion plants" means plants using combustion to produce a fluid stream from which a propulsive thrust on the plant is obtained on the reaction principle.</note-paragraph><note-paragraph><CPC-specific-note>"jet-pipe" means the exhaust duct of a jet engine that carries the exhaust to the nozzle.</CPC-specific-note></note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to the notes preceding class <class-ref scheme="cpc">F01</class-ref>.</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="F02K1/00" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F02K1/00" definition-exists="true" ipc-concordant="F02K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plants characterised by the form or arrangement of the jet pipe or nozzle</text></title-part><title-part><text>Jet pipes or nozzles peculiar thereto </text><reference><text>rocket nozzles <class-ref scheme="cpc">F02K9/97</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="F02K1/002" definition-exists="true" ipc-concordant="F02K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K1/002</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>with means to modify the direction of thrust vector </text><reference><text><class-ref scheme="cpc">F02K1/54</class-ref> takes precedence; thrust vectoring of rockets <class-ref scheme="cpc">F02K9/80</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="F02K1/004" definition-exists="true" ipc-concordant="F02K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using one or more swivable nozzles rotating about their own axis</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="F02K1/006" definition-exists="true" ipc-concordant="F02K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>within one plane only</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="F02K1/008" definition-exists="true" ipc-concordant="F02K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in any rearward direction</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="F02K1/04" definition-exists="true" ipc-concordant="F02K1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mounting of an exhaust cone in the jet pipe</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="F02K1/06" definition-exists="false" ipc-concordant="F02K1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K1/06</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Varying effective area of jet pipe or nozzle </text><reference><text>by using fluid jets to influence the jet flow <class-ref scheme="cpc">F02K1/30</class-ref></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="F02K1/08" definition-exists="true" ipc-concordant="F02K1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by axially moving or transversely deforming an internal member, e.g. the exhaust cone</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/085" definition-exists="true" ipc-concordant="F02K1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by transversely deforming an internal member</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="F02K1/09" definition-exists="true" ipc-concordant="F02K1/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by axially moving an external member, e.g. a shroud </text><reference><text><class-ref scheme="cpc">F02K1/12</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="F02K1/10" definition-exists="true" ipc-concordant="F02K1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by distorting the jet pipe or nozzle</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="F02K1/11" definition-exists="true" ipc-concordant="F02K1/11" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of pivoted eyelids</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="F02K1/12" definition-exists="false" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of pivoted flaps</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/1207" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K1/1207</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>of one series of flaps hinged at their upstream ends on a fixed structure </text><reference><text><class-ref scheme="cpc">F02K1/1215</class-ref> - <class-ref scheme="cpc">F02K1/1292</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="10" additional-only="false" sort-key="F02K1/1215" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure, and the downstream series having its flaps hinged at their downstream ends on a fixed structure</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="F02K1/1223" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their upstream ends on the downstream ends of the flaps of the upstream series</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="F02K1/123" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of two series of flaps, both having their flaps hinged at their upstream ends on a fixed structure</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="F02K1/1238" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1238</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their upstream ends on a substantially axially movable structure</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="F02K1/1246" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their downstream ends on a substantially axially movable structure</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="F02K1/1253" definition-exists="false" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of one series of flaps hinged at their upstream ends on a fixed structure and of a substantially axially movable external member</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="F02K1/1261" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of one series of flaps hinged at their upstream ends on a substantially axially movable structure</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="F02K1/1269" definition-exists="true" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1269</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of three series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the internal downstream series having its flaps hinged at their downstream ends on the downstream ends of the flaps of the external downstream series hinged on a fixed structure at their upstream ends</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="F02K1/1276" definition-exists="false" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of three series of flaps, the upstream series having its flaps hinged at their upstream ends on a substantially axially movable structure and the downstream or external series having its flaps hinged at their upstream ends on a fixed structure</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="F02K1/1284" definition-exists="false" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of three series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the internal downstream series having its flaps hinged at their downstream ends on the downstream ends of the flaps of the external downstream series hinged at their upstream ends on a substantially axially movable structure</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="F02K1/1292" definition-exists="false" ipc-concordant="F02K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/1292</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of three series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure, the internal downstream series having its flaps hinged at their upstream ends on the downstream ends of the flaps of the upstream series and at their downstream ends on the downstream ends of the flaps of the external downstream series hinged at their upstream ends on a substantially axially movable structure</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="F02K1/15" definition-exists="false" ipc-concordant="F02K1/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control or regulation</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/16" definition-exists="false" ipc-concordant="F02K1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>conjointly with another control</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K1/165" definition-exists="false" ipc-concordant="F02K1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with air intake control</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="F02K1/17" definition-exists="false" ipc-concordant="F02K1/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with control of fuel supply</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="F02K1/18" definition-exists="false" ipc-concordant="F02K1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>automatic</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="F02K1/28" definition-exists="false" ipc-concordant="F02K1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using fluid jets to influence the jet flow</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K1/30" definition-exists="false" ipc-concordant="F02K1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for varying effective area of jet pipe or nozzle</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="F02K1/32" definition-exists="false" ipc-concordant="F02K1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for reversing thrust</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="F02K1/34" definition-exists="false" ipc-concordant="F02K1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for attenuating noise</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="F02K1/36" definition-exists="true" ipc-concordant="F02K1/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having an ejector</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="F02K1/38" definition-exists="false" ipc-concordant="F02K1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Introducing air inside the jet </text><reference><text><class-ref scheme="cpc">F02K1/28</class-ref> takes 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="F02K1/383" definition-exists="false" ipc-concordant="F02K1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with retractable elements</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="F02K1/386" definition-exists="false" ipc-concordant="F02K1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F02K1/386</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>mixing devices in the jet pipe, e.g. for mixing primary and secondary flow</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="F02K1/40" definition-exists="true" ipc-concordant="F02K1/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nozzles having means for dividing the jet into a plurality of partial jets or having an elongated cross-section outlet</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K1/42" definition-exists="true" ipc-concordant="F02K1/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being movable into an inoperative position</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="F02K1/44" definition-exists="true" ipc-concordant="F02K1/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nozzles having means, e.g. a shield, reducing sound radiation in a specified direction </text><reference><text><class-ref scheme="cpc">F02K1/40</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="8" additional-only="false" sort-key="F02K1/46" definition-exists="true" ipc-concordant="F02K1/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing </text><reference><text><class-ref scheme="cpc">F02K1/28</class-ref>, <class-ref scheme="cpc">F02K1/36</class-ref>, <class-ref scheme="cpc">F02K1/38</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="F02K1/48" definition-exists="true" ipc-concordant="F02K1/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Corrugated nozzles</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="F02K1/50" definition-exists="true" ipc-concordant="F02K1/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Deflecting outwardly a portion of the jet by retractable scoop-like baffles</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="F02K1/52" definition-exists="true" ipc-concordant="F02K1/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nozzles specially constructed for positioning adjacent to another nozzle or to a fixed member, e.g. fairing</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="F02K1/54" definition-exists="false" ipc-concordant="F02K1/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K1/54</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Nozzles having means for reversing jet thrust </text><reference><text>reversing jet thrust using fluid jets <class-ref scheme="cpc">F02K1/32</class-ref></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="F02K1/56" definition-exists="false" ipc-concordant="F02K1/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reversing jet main flow</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/563" definition-exists="true" ipc-concordant="F02K1/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/563</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in specified direction, e.g. to obviate its reinjection</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="F02K1/566" definition-exists="true" ipc-concordant="F02K1/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/566</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by blocking the rearward discharge by means of a translatable member</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="F02K1/58" definition-exists="true" ipc-concordant="F02K1/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reversers mounted on the inner cone or the nozzle housing </text><CPC-specific-text><text>or the fuselage</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="F02K1/60" definition-exists="true" ipc-concordant="F02K1/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by blocking the rearward discharge by means of pivoted eyelids or clamshells, e.g. target-type reversers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K1/605" definition-exists="true" ipc-concordant="F02K1/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the aft end of the engine cowling being movable to uncover openings for the reversed flow</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="F02K1/62" definition-exists="true" ipc-concordant="F02K1/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by blocking the rearward discharge by means of flaps</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K1/625" definition-exists="true" ipc-concordant="F02K1/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the aft end of the engine cowling being movable to uncover openings for the reversed flow</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="F02K1/64" definition-exists="false" ipc-concordant="F02K1/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reversing fan flow</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/645" definition-exists="true" ipc-concordant="F02K1/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/645</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using inflatable diaphragms</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="F02K1/66" definition-exists="true" ipc-concordant="F02K1/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using reversing fan blades</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="F02K1/68" definition-exists="true" ipc-concordant="F02K1/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reversers mounted on the engine housing downstream of the fan exhaust section</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="F02K1/70" definition-exists="true" ipc-concordant="F02K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using thrust reverser flaps or doors mounted on the fan housing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K1/72" definition-exists="true" ipc-concordant="F02K1/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the aft end of the fan housing being movable to uncover openings in the fan housing for the reversed flow</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="F02K1/74" definition-exists="false" ipc-concordant="F02K1/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reversing at least one flow in relation to at least one other flow in a plural- flow engine</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="F02K1/76" definition-exists="true" ipc-concordant="F02K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control or regulation of thrust reversers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/763" definition-exists="true" ipc-concordant="F02K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/763</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with actuating systems or actuating devices; Arrangement of actuators for thrust reversers</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="F02K1/766" definition-exists="true" ipc-concordant="F02K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/766</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with blocking systems or locking devices; Arrangement of locking devices for thrust reversers</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="8" additional-only="false" sort-key="F02K1/78" definition-exists="true" ipc-concordant="F02K1/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other construction of jet pipes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K1/80" definition-exists="true" ipc-concordant="F02K1/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Couplings or connections</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/805" definition-exists="true" ipc-concordant="F02K1/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/805</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing devices therefor, e.g. for movable parts of jet pipes or nozzle flaps</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="F02K1/82" definition-exists="true" ipc-concordant="F02K1/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Jet pipe walls, e.g. liners</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K1/822" definition-exists="true" ipc-concordant="F02K1/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/822</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat insulating structures or liners, cooling arrangements, e.g. post combustion liners; Infra-red radiation suppressors</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="F02K1/825" definition-exists="true" ipc-concordant="F02K1/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K1/825</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Infra-red radiation suppressors</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="F02K1/827" definition-exists="true" ipc-concordant="F02K1/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K1/827</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Sound absorbing structures or liners</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="F02K3/00" definition-exists="true" ipc-concordant="F02K3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plants including a gas turbine driving a compressor or a ducted fan</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02K3/02" definition-exists="false" ipc-concordant="F02K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which part of the working fluid by-passes the turbine and combustion chamber</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K3/025" definition-exists="false" ipc-concordant="F02K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the by-pass flow being at least partly used to create an independent thrust component</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="F02K3/04" definition-exists="false" ipc-concordant="F02K3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K3/06" definition-exists="false" ipc-concordant="F02K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with front fan</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="F02K3/062" definition-exists="false" ipc-concordant="F02K3/062" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with aft fan</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="F02K3/065" definition-exists="false" ipc-concordant="F02K3/065" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with front and aft fans</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="F02K3/068" definition-exists="false" ipc-concordant="F02K3/068" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being characterised by a short axial length relative to the diameter</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="F02K3/072" definition-exists="true" ipc-concordant="F02K3/072" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K3/072</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with counter-rotating </text><CPC-specific-text><text>, e.g. fan</text></CPC-specific-text><text> rotors</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="F02K3/075" definition-exists="false" ipc-concordant="F02K3/075" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/075</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>controlling flow ratio between flows</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="F02K3/077" definition-exists="false" ipc-concordant="F02K3/077" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/077</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the plant being of the multiple flow type, i.e. having three or more flows</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="F02K3/08" definition-exists="true" ipc-concordant="F02K3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K3/08</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with supplementary heating of the working fluid</text></title-part><title-part><text>Control thereof </text><reference><text>control of fuel supply therefor <class-ref scheme="cpc">F02C9/26</class-ref></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="F02K3/10" definition-exists="false" ipc-concordant="F02K3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by after-burners </text><reference><text><class-ref scheme="cpc">F02K3/105</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="F02K3/105" definition-exists="false" ipc-concordant="F02K3/105" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating the by-pass flow</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K3/11" definition-exists="false" ipc-concordant="F02K3/11" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of burners or combustion chambers</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="F02K3/115" definition-exists="false" ipc-concordant="F02K3/115" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/115</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of indirect heat exchange</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="F02K3/12" definition-exists="false" ipc-concordant="F02K3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by having more than one gas turbine</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="F02K5/00" definition-exists="true" ipc-concordant="F02K5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plants including an engine, other than a gas turbine, driving a compressor or a ducted fan</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02K5/02" definition-exists="false" ipc-concordant="F02K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the engine being of the reciprocating-piston type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K5/023" definition-exists="false" ipc-concordant="F02K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K5/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the compressor being of the reciprocating-piston type </text><reference><text><class-ref scheme="cpc">F02K5/026</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="F02K5/026" definition-exists="false" ipc-concordant="F02K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K5/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>free-piston engines</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="F02K7/00" definition-exists="true" ipc-concordant="F02K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan</text></title-part><title-part><text>Control thereof </text><reference><text>rocket-engine plants <class-ref scheme="cpc">F02K9/00</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="F02K7/005" definition-exists="true" ipc-concordant="F02K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K7/005</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>the engine comprising a rotor rotating under the actions of jets issuing from this rotor</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="F02K7/02" definition-exists="false" ipc-concordant="F02K7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the jet being intermittent, i.e. pulse-jet</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K7/04" definition-exists="false" ipc-concordant="F02K7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with resonant combustion chambers</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="F02K7/06" definition-exists="false" ipc-concordant="F02K7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with combustion chambers having valves</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K7/067" definition-exists="false" ipc-concordant="F02K7/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having aerodynamic valves</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="F02K7/075" definition-exists="false" ipc-concordant="F02K7/075" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/075</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with multiple pulse-jet engines</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="F02K7/08" definition-exists="false" ipc-concordant="F02K7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the jet being continuous</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="F02K7/10" definition-exists="false" ipc-concordant="F02K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K7/105" definition-exists="false" ipc-concordant="F02K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a solid fuel</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="F02K7/12" definition-exists="false" ipc-concordant="F02K7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Injection-induction jet engines</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="F02K7/14" definition-exists="false" ipc-concordant="F02K7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with external combustion, e.g. scram-jet engines</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="F02K7/16" definition-exists="false" ipc-concordant="F02K7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composite ram-jet/turbo-jet engines</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="F02K7/18" definition-exists="false" ipc-concordant="F02K7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composite ram-jet/rocket engines</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="F02K7/20" definition-exists="false" ipc-concordant="F02K7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K7/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composite ram-jet/pulse-jet engines</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="F02K9/00" definition-exists="true" ipc-concordant="F02K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/00</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor</text></title-part><title-part><text>Control thereof</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02K9/08" definition-exists="true" ipc-concordant="F02K9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/08</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using solid propellants </text><reference><text><class-ref scheme="cpc">F02K9/72</class-ref> takes precedence; using semi-solid or pulverulent propellants <class-ref scheme="cpc">F02K9/70</class-ref></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="F02K9/10" definition-exists="false" ipc-concordant="F02K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shape or structure of solid propellant charges</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K9/12" definition-exists="false" ipc-concordant="F02K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made of two or more portions burning at different rates </text><CPC-specific-text><text>or having different characteristics</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="F02K9/14" definition-exists="false" ipc-concordant="F02K9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>made from sheet-like materials, e.g. of carpet-roll type, of layered 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="F02K9/16" definition-exists="false" ipc-concordant="F02K9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of honeycomb 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="F02K9/18" definition-exists="false" ipc-concordant="F02K9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the internal-burning type having a star or like shaped internal cavity</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="F02K9/20" definition-exists="false" ipc-concordant="F02K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the external-burning type</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="F02K9/22" definition-exists="false" ipc-concordant="F02K9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the front-burning type</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="F02K9/24" definition-exists="false" ipc-concordant="F02K9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Charging rocket engines with solid propellants</text></title-part><title-part><text>Methods or apparatus specially adapted for working solid propellant charges</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="F02K9/26" definition-exists="false" ipc-concordant="F02K9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burning control </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F02K9/10</class-ref>, <class-ref scheme="cpc">F02K9/34</class-ref>, <class-ref scheme="cpc">F02K9/86</class-ref>, <class-ref scheme="cpc">F02K9/92</class-ref> and <class-ref scheme="cpc">F02K9/94</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="9" additional-only="false" sort-key="F02K9/28" definition-exists="false" ipc-concordant="F02K9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more propellant charges with the propulsion gases exhausting through a common nozzle</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="F02K9/30" definition-exists="false" ipc-concordant="F02K9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the propulsion gases exhausting through a plurality of nozzles</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="F02K9/32" definition-exists="true" ipc-concordant="F02K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/32</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Constructional parts</text></title-part><title-part><text>Details not otherwise provided for</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K9/34" definition-exists="false" ipc-concordant="F02K9/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings</text></title-part><title-part><text>Combustion chambers</text></title-part><title-part><text>Liners thereof</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K9/343" definition-exists="false" ipc-concordant="F02K9/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/343</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Joints, connections, seals therefor</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="F02K9/346" definition-exists="false" ipc-concordant="F02K9/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/346</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Liners, e.g. inhibitors</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="F02K9/36" definition-exists="false" ipc-concordant="F02K9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Propellant charge supports</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="F02K9/38" definition-exists="false" ipc-concordant="F02K9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Safety devices, e.g. to prevent accidental ignition</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="F02K9/40" definition-exists="false" ipc-concordant="F02K9/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling arrangements </text><CPC-specific-text><reference><text>for nozzles <class-ref scheme="cpc">F02K9/972</class-ref></text></reference></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="8" additional-only="false" sort-key="F02K9/42" definition-exists="false" ipc-concordant="F02K9/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using liquid or gaseous propellants </text><reference><text><class-ref scheme="cpc">F02K9/72</class-ref> takes 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="F02K9/425" definition-exists="true" ipc-concordant="F02K9/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/425</classification-symbol><class-title date-revised="2022-01-01"><title-part><CPC-specific-text><text>Propellants</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="F02K9/44" definition-exists="false" ipc-concordant="F02K9/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Feeding propellants</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K9/46" definition-exists="true" ipc-concordant="F02K9/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/46</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using pumps</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K9/48" definition-exists="false" ipc-concordant="F02K9/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>driven by a gas turbine fed by propellant combustion gases </text><CPC-specific-text><text>or fed by vaporized propellants or other gases</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="F02K9/50" definition-exists="false" ipc-concordant="F02K9/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using pressurised fluid to pressurise the propellants</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="F02K9/52" definition-exists="true" ipc-concordant="F02K9/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/52</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Injectors</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="F02K9/54" definition-exists="true" ipc-concordant="F02K9/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/54</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Leakage detectors</text></title-part><title-part><text>Purging systems</text></title-part><title-part><text>Filtration systems</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="F02K9/56" definition-exists="false" ipc-concordant="F02K9/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K9/563" definition-exists="false" ipc-concordant="F02K9/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/563</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of propellant feed pumps</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="F02K9/566" definition-exists="false" ipc-concordant="F02K9/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F02K9/566</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>elements and safety devices, e.g. pressure relief valves</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="F02K9/58" definition-exists="true" ipc-concordant="F02K9/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/58</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Propellant feed valves</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="F02K9/60" definition-exists="true" ipc-concordant="F02K9/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/60</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Constructional parts</text></title-part><title-part><text>Details not otherwise provided for</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K9/605" definition-exists="false" ipc-concordant="F02K9/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Reservoirs</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="F02K9/62" definition-exists="false" ipc-concordant="F02K9/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion or thrust chambers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02K9/64" definition-exists="false" ipc-concordant="F02K9/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cooling arrangements</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="F02K9/66" definition-exists="false" ipc-concordant="F02K9/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the rotary type</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="F02K9/68" definition-exists="false" ipc-concordant="F02K9/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Decomposition chambers</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="F02K9/70" definition-exists="false" ipc-concordant="F02K9/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using semi- solid or pulverulent propellants</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="F02K9/72" definition-exists="false" ipc-concordant="F02K9/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using liquid and solid propellants, i.e. hybrid rocket-engine plants</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="F02K9/74" definition-exists="false" ipc-concordant="F02K9/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>combined with another jet-propulsion plant</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02K9/76" definition-exists="false" ipc-concordant="F02K9/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with another rocket-engine plant</text></title-part><title-part><text>Multistage rocket-engine plants</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02K9/763" definition-exists="false" ipc-concordant="F02K9/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/763</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with solid propellant</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="F02K9/766" definition-exists="false" ipc-concordant="F02K9/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/766</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with liquid propellant</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="F02K9/78" definition-exists="false" ipc-concordant="F02K9/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an air-breathing jet-propulsion plant </text><reference><text>with a ram-jet engine <class-ref scheme="cpc">F02K7/18</class-ref></text></reference></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="F02K9/80" definition-exists="false" ipc-concordant="F02K9/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F02K9/80</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by thrust or thrust vector control </text><reference><text>burning control of solid propellants <class-ref scheme="cpc">F02K9/26</class-ref>; feeding control of liquid or gaseous propellants <class-ref scheme="cpc">F02K9/56</class-ref>; re-ignitable, restartable or intermittently operated rocket-engine plants <class-ref scheme="cpc">F02K9/94</class-ref></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="F02K9/805" definition-exists="false" ipc-concordant="F02K9/80" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/805</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>servo-mechanisms or control devices therefor</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="F02K9/82" definition-exists="false" ipc-concordant="F02K9/82" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/82</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by injection of a secondary fluid into the rocket exhaust gases</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="F02K9/84" definition-exists="false" ipc-concordant="F02K9/84" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/84</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using movable nozzles</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="F02K9/86" definition-exists="false" ipc-concordant="F02K9/86" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using nozzle throats of adjustable cross- section </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F02K9/978</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="F02K9/88" definition-exists="false" ipc-concordant="F02K9/88" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using auxiliary rocket nozzles</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="F02K9/90" definition-exists="false" ipc-concordant="F02K9/90" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/90</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using deflectors </text><reference><text><class-ref scheme="cpc">F02K9/82</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="F02K9/92" definition-exists="false" ipc-concordant="F02K9/92" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/92</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>incorporating means for reversing or terminating thrust</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="F02K9/94" definition-exists="false" ipc-concordant="F02K9/94" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/94</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Re-ignitable or restartable rocket- engine plants</text></title-part><title-part><text>Intermittently operated rocket-engine plants</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="F02K9/95" definition-exists="false" ipc-concordant="F02K9/95" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/95</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by starting or ignition means or arrangements </text><reference><text>safety devices <class-ref scheme="cpc">F02K9/38</class-ref></text></reference></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="F02K9/96" definition-exists="false" ipc-concordant="F02K9/96" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/96</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by specially adapted arrangements for testing or measuring</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="F02K9/97" definition-exists="false" ipc-concordant="F02K9/97" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/97</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rocket nozzles </text><reference><text>thrust or thrust vector control <class-ref scheme="cpc">F02K9/80</class-ref></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="F02K9/972" definition-exists="false" ipc-concordant="F02K9/97" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/972</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid cooling arrangements for nozzles </text><reference><text><class-ref scheme="cpc">F02K9/64</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="F02K9/974" definition-exists="false" ipc-concordant="F02K9/97" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/974</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nozzle- linings; Ablative coatings</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="F02K9/976" definition-exists="false" ipc-concordant="F02K9/97" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/976</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Deployable nozzles</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="F02K9/978" definition-exists="false" ipc-concordant="F02K9/97" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K9/978</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Closures for nozzles; Nozzles comprising ejectable or discardable elements</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="F02K99/00" definition-exists="false" ipc-concordant="F02K99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02K99/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Subject matter not provided for in other groups of this subclass</text></title-part></class-title></classification-item></classification-item></classification-item></class-scheme> |