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43 lines
22 KiB
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43 lines
22 KiB
XML
2 years ago
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<?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="F28G" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F28G</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS </text><reference><text>cleaning pipes or tubes in general <class-ref scheme="cpc">B08B9/02</class-ref>; devices or arrangements for removing water, minerals, or sludge from boilers while the boiler is in operation, or which remain in position while the boiler is in operation, or are specifically adapted to boilers without any other utility <class-ref scheme="cpc">F22B37/48</class-ref>; removal or treatment of combustion products or combustion residues <class-ref scheme="cpc">F23J</class-ref>; removing ice from heat-exchange apparatus <class-ref scheme="cpc">F28F17/00</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</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="F28G1/00" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28G1/00" definition-exists="true" ipc-concordant="F28G1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-rotary, e.g. reciprocated, appliances </text><reference><text><class-ref scheme="cpc">F28G3/00</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28G1/02" definition-exists="false" ipc-concordant="F28G1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having brushes </text><reference><CPC-specific-text><text><class-ref scheme="cpc">F28G1/12</class-ref> takes precedence;</text></CPC-specific-text><text> brushes <class-ref scheme="cpc">A46B</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="F28G1/04" definition-exists="false" ipc-concordant="F28G1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having articulated tools, e.g. assembled in chain manner</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="F28G1/06" definition-exists="false" ipc-concordant="F28G1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having coiled wire tools, i.e. basket type</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="F28G1/08" definition-exists="false" ipc-concordant="F28G1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having scrapers, hammers, or cutters, e.g. rigidly mounted</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28G1/10" definition-exists="false" ipc-concordant="F28G1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>resiliently mounted</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="F28G1/12" definition-exists="false" ipc-concordant="F28G1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid-propelled scrapers, bullets, or like solid bodies</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28G1/125" definition-exists="false" ipc-concordant="F28G1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>forced back and forth by means of flow reversal</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="F28G1/14" definition-exists="false" ipc-concordant="F28G1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pull-through rods</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="F28G1/16" definition-exists="false" ipc-concordant="F28G1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using jets of fluid for removing debris </text><reference><text><class-ref scheme="cpc">F28G1/12</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="F28G1/163" definition-exists="false" ipc-concordant="F28G1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from internal surfaces of heat exchange conduits</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="F28G1/166" definition-exists="false" ipc-concordant="F28G1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G1/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from external surfaces of heat exchange conduits</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="F28G3/00" definition-exists="true" ipc-concordant="F28G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary appliances</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28G3/02" definition-exists="false" ipc-concordant="F28G3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having abrasive tools</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="F28G3/04" definition-exists="false" ipc-concordant="F28G3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having brushes </text><reference><text>brushes <class-ref scheme="cpc">A46B</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="F28G3/06" definition-exists="false" ipc-concordant="F28G3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having articulated tools, e.g. assembled in chain manner</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="F28G3/08" definition-exists="false" ipc-concordant="F28G3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having coiled wire tools, i.e. basket type</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="F28G3/10" definition-exists="false" ipc-concordant="F28G3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having scrapers, hammers, or cutters, e.g. rigidly mounted</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28G3/12" definition-exists="false" ipc-concordant="F28G3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>resiliently mounted</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="F28G3/14" definition-exists="false" ipc-concordant="F28G3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>thrown into working position by centrifugal force</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="F28G3/16" definition-exists="false" ipc-concordant="F28G3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using jets of fluid for removing debris</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28G3/163" definition-exists="false" ipc-concordant="F28G3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from internal surfaces of heat exchange conduits</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="F28G3/166" definition-exists="false" ipc-concordant="F28G3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G3/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>from external surfaces of heat exchange conduits</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="F28G5/00" definition-exists="true" ipc-concordant="F28G5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cleaning by distortion </text><reference><text>by vibration <class-ref scheme="cpc">F28G7/00</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28G7/00" definition-exists="true" ipc-concordant="F28G7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cleaning by vibration </text><CPC-specific-text><text>or pressure waves</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28G7/005" definition-exists="false" ipc-concordant="F28G7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G7/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by explosions or detonations; by pressure waves generated by combustion processes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28G9/00" definition-exists="true" ipc-concordant="F28G9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cleaning by flushing or washing, e.g. with chemical solvents </text><reference><text>appliances using jets of fluid for removing debris <class-ref scheme="cpc">F28G1/16</class-ref>, <class-ref scheme="cpc">F28G3/16</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="F28G9/005" definition-exists="false" ipc-concordant="F28G9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of regenerative heat exchanger</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28G11/00" definition-exists="true" ipc-concordant="F28G11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cleaning by combustion, e.g. using squibs, using travelling burners </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F28G7/005</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="7" additional-only="false" sort-key="F28G13/00" definition-exists="true" ipc-concordant="F28G13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F28G13/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Appliances or processes not covered by groups <class-ref scheme="cpc">F28G1/00</class-ref> - <class-ref scheme="cpc">F28G11/00</class-ref></text></title-part><title-part><text>Combinations of appliances or processes covered by groups <class-ref scheme="cpc">F28G1/00</class-ref> - <class-ref scheme="cpc">F28G11/00</class-ref></text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28G13/005" definition-exists="false" ipc-concordant="F28G13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G13/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cleaning by increasing the temperature of heat exchange surfaces </text><reference><text><class-ref scheme="cpc">F28G7/005</class-ref>, <class-ref scheme="cpc">F28G11/00</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28G15/00" definition-exists="true" ipc-concordant="F28G15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details </text><reference><text>measuring thickness of deposit <class-ref scheme="cpc">G01B</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="F28G15/003" definition-exists="false" ipc-concordant="F28G15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control arrangements</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F28G15/006" definition-exists="false" ipc-concordant="F28G15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G2015/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for processing a cleaning fluid after use, e.g. filtering and recycling</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="F28G15/02" definition-exists="false" ipc-concordant="F28G15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supports for cleaning appliances, e.g. frames</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="F28G15/04" definition-exists="false" ipc-concordant="F28G15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Feeding and driving arrangements, e.g. power operation</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28G15/06" definition-exists="false" ipc-concordant="F28G15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Automatic reversing devices</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="F28G15/08" definition-exists="false" ipc-concordant="F28G15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Locating position of cleaning appliances within conduits</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="F28G15/10" definition-exists="false" ipc-concordant="F28G15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28G15/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Masks for delimiting area to be cleaned</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme>
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