TREA

George C. Derbyshire

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  • Sheffield, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drill chuck
    • Patent number 4,684,139
    • Issue date Aug 4, 1987
    • The Jacobs Manufacturing Company, Limited
    • George C. Derbyshire
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Breast drills
    • Patent number 4,240,771
    • Issue date Dec 23, 1980
    • The Jabobs Manufacturing Company, Ltd.
    • George C. Derbyshire
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Keys for drill chucks
    • Patent number 4,186,933
    • Issue date Feb 5, 1980
    • The Jacobs Manufacturing Co., Ltd.
    • George C. Derbyshire
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Keys for manually operated work-holding chucks
    • Patent number 4,157,836
    • Issue date Jun 12, 1979
    • Chicago Pneumatic Tool Company
    • George C. Derbyshire
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Drill chucks
    • Patent number 4,154,450
    • Issue date May 15, 1979
    • The Jacobs Manufacturing Company, Limited
    • George C. Derbyshire
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Keys for drill chucks
    • Patent number 4,111,079
    • Issue date Sep 5, 1978
    • The Jacobs Manufacturing Company, Limited
    • George Cecil Derbyshire
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS