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19 lines
9.3 KiB
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19 lines
9.3 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="G09C" definition-exists="true" date-revised="2021-01-01" status="published"><classification-symbol>G09C</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY</text></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="G09C1/00" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="G09C1/00" definition-exists="false" ipc-concordant="G09C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G09C1/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system </text><reference><text>cryptographic typewriters <class-ref scheme="cpc">G09C3/00</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="G09C1/02" definition-exists="false" ipc-concordant="G09C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using a ciphering code in chart form</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="G09C1/04" definition-exists="false" ipc-concordant="G09C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with sign carriers or indicators moved relative to one another to positions determined by a permutation code, or key, so as to indicate the appropriate corresponding clear or ciphered text</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="G09C1/06" definition-exists="false" ipc-concordant="G09C1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G09C1/06</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G09C1/08" definition-exists="false" ipc-concordant="G09C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the connections being mechanical</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="G09C1/10" definition-exists="false" ipc-concordant="G09C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the connections being electrical</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="G09C1/12" definition-exists="false" ipc-concordant="G09C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>comprising contact-bearing permutation discs</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="G09C1/14" definition-exists="false" ipc-concordant="G09C1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving removable or interchangeable coding numbers, e.g. master tapes, punched cards</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="G09C3/00" definition-exists="true" ipc-concordant="G09C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Typewriters for ciphering or deciphering cryptographic text </text><reference><text>marking record carriers <class-ref scheme="cpc">G06K</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="G09C3/02" definition-exists="false" ipc-concordant="G09C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>G09C3/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with auxiliary keys or keyboards acting on the original keys or keyboards</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="G09C3/04" definition-exists="false" ipc-concordant="G09C3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="G09C3/06" definition-exists="false" ipc-concordant="G09C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the connections being mechanical</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="G09C3/08" definition-exists="false" ipc-concordant="G09C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the connections being electrical</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="G09C3/10" definition-exists="false" ipc-concordant="G09C3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving removable or interchangeable coding members, e.g. master tapes, punched cards</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="G09C5/00" definition-exists="true" ipc-concordant="G09C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>G09C5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages</text></title-part></class-title></classification-item></classification-item></classification-item></class-scheme> |