TREA

Construction of key levers

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Industry

  • CPC
  • B41J5/14
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B41Printing, stamps B41JTYPEWRITERS SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS B41J5/00Devices or arrangements for controlling character selection

Current Industry

B41J5/14Construction of key levers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Key device
    • Patent number 10,409,316
    • Issue date Sep 10, 2019
    • Chicony Electronics Co., Ltd.
    • Chia-Hsin Chen
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Printable, reusable key masks
    • Patent number 6,883,985
    • Issue date Apr 26, 2005
    • Robin Catherine Roberson
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Keyboard for typewriter and the like
    • Patent number 5,350,244
    • Issue date Sep 27, 1994
    • TA Triumph-Adler AG
    • Gunter Buttner
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Keylever pawl tube spring and keyboard utilizing a keylever pawl tu...
    • Patent number 4,316,674
    • Issue date Feb 23, 1982
    • International Business Machines Corporation
    • Charles C. Mayborg
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Key extension for shorthand typewriting machine
    • Patent number 4,307,970
    • Issue date Dec 29, 1981
    • The Hedman Company
    • Carroll B. McGaughey
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Key mechanism having a snap action
    • Patent number 4,269,521
    • Issue date May 26, 1981
    • SCM Corporation
    • Scott J. Longrod
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Optically coded keyboard arrangement
    • Patent number 4,247,211
    • Issue date Jan 27, 1981
    • Olympia Werke AG
    • Wolfgang Behrendt
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Low silhouette keyboard
    • Patent number 4,188,137
    • Issue date Feb 12, 1980
    • SCM Corporation
    • Hugh St. L. Dannatt
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3789970
    • Patent number 3,789,970
    • Issue date Feb 5, 1974
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3725908
    • Patent number 3,725,908
    • Issue date Apr 3, 1973
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3722651
    • Patent number 3,722,651
    • Issue date Mar 27, 1973
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3715023
    • Patent number 3,715,023
    • Issue date Feb 6, 1973
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3671822
    • Patent number 3,671,822
    • Issue date Jun 20, 1972
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3633723
    • Patent number 3,633,723
    • Issue date Jan 11, 1972
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3485112
    • Patent number 3,485,112
    • Issue date Dec 23, 1969
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3387694
    • Patent number 3,387,694
    • Issue date Jun 11, 1968
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3353038
    • Patent number 3,353,038
    • Issue date Nov 14, 1967
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3338369
    • Patent number 3,338,369
    • Issue date Aug 29, 1967
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3327829
    • Patent number 3,327,829
    • Issue date Jun 27, 1967
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3322255
    • Patent number 3,322,255
    • Issue date May 30, 1967
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3308915
    • Patent number 3,308,915
    • Issue date Mar 14, 1967
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3197011
    • Patent number 3,197,011
    • Issue date Jul 27, 1965
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    3014569
    • Patent number 3,014,569
    • Issue date Dec 26, 1961
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2966249
    • Patent number 2,966,249
    • Issue date Dec 27, 1960
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2948380
    • Patent number 2,948,380
    • Issue date Aug 9, 1960
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2889026
    • Patent number 2,889,026
    • Issue date Jun 2, 1959
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2681719
    • Patent number 2,681,719
    • Issue date Jun 22, 1954
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2529604
    • Patent number 2,529,604
    • Issue date Nov 14, 1950
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2155998
    • Patent number 2,155,998
    • Issue date Apr 25, 1939
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    2059574
    • Patent number 2,059,574
    • Issue date Nov 3, 1936
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

  • Information Patent Application

    Printable, reusable key masks
    • Publication number 20050186006
    • Publication date Aug 25, 2005
    • Robin Catherine Roberson
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Printable, reusable key masks
    • Publication number 20030161672
    • Publication date Aug 28, 2003
    • Robin Catherine Roberson
    • G06 - COMPUTING CALCULATING COUNTING