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the connections being electrical

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  • CPC
  • G09C3/08
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09CCODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY G09C3/00Typewriters for ciphering or deciphering cryptographic text

Current Industry

G09C3/08the connections being electrical
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for encrypted print processing
    • Patent number 7,853,017
    • Issue date Dec 14, 2010
    • Canon Kabushiki Kaisha
    • Hiroko Iizuka
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Control circuits for electric coding machines
    • Patent number 6,175,625
    • Issue date Jan 16, 2001
    • The United States of America as represented by the National Security Agency
    • Laurance F. Safford
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Teletypewriter privacy system
    • Patent number 4,332,977
    • Issue date Jun 1, 1982
    • American Standard Inc.
    • Laurance F. Safford
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Printer for electric coding machines
    • Patent number 4,185,928
    • Issue date Jan 29, 1980
    • The United States of America as represented by the Secretary of the Navy
    • Howard L. Krum
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Coding and decoding machine
    • Patent number 4,154,006
    • Issue date May 15, 1979
    • The United States of America as represented by the Secretary of the Navy
    • Chester C. Wood
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Electro-mechanical cipher machine
    • Patent number 4,143,978
    • Issue date Mar 13, 1979
    • The United States of America as represented by the Secretary of the Navy
    • Bern Anderson
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2993089
    • Patent number 2,993,089
    • Issue date Jul 18, 1961
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2898402
    • Patent number 2,898,402
    • Issue date Aug 4, 1959
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2499407
    • Patent number 2,499,407
    • Issue date Mar 7, 1950
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2373890
    • Patent number 2,373,890
    • Issue date Apr 17, 1945
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2190649
    • Patent number 2,190,649
    • Issue date Feb 20, 1940
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2190650
    • Patent number 2,190,650
    • Issue date Feb 20, 1940
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2153194
    • Patent number 2,153,194
    • Issue date Apr 4, 1939
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2151452
    • Patent number 2,151,452
    • Issue date Mar 21, 1939
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2139676
    • Patent number 2,139,676
    • Issue date Dec 13, 1938
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1861857
    • Patent number 1,861,857
    • Issue date Jun 7, 1932
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1846105
    • Patent number 1,846,105
    • Issue date Feb 23, 1932
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1733886
    • Patent number 1,733,886
    • Issue date Oct 29, 1929
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1683072
    • Patent number 1,683,072
    • Issue date Sep 4, 1928
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1657411
    • Patent number 1,657,411
    • Issue date Jan 24, 1928
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1510441
    • Patent number 1,510,441
    • Issue date Sep 30, 1924
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    1472775
    • Patent number 1,472,775
    • Issue date Oct 30, 1923
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents