TREA

George A. Hibbard

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  • Claremont, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hammer
    • Patent number 4,550,785
    • Issue date Nov 5, 1985
    • Consolidated Technologies Corporation
    • George A. Hibbard
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Mine roof driller-bolter apparatus and method
    • Patent number 4,420,277
    • Issue date Dec 13, 1983
    • Joy Manufacturing Company
    • George A. Hibbard
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hammer
    • Patent number 4,282,937
    • Issue date Aug 11, 1981
    • Joy Manufacturing Company
    • George A. Hibbard
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rock drill
    • Patent number 4,265,321
    • Issue date May 5, 1981
    • Joy Manufacturing Company
    • George A. Hibbard
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock drill
    • Patent number 4,174,010
    • Issue date Nov 13, 1979
    • Joy Manufacturing Company
    • George A. Hibbard
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer having fluid biased work member
    • Patent number 4,089,380
    • Issue date May 16, 1978
    • Joy Manufacturing Company
    • George A. Hibbard
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Fluid operable hammer
    • Patent number 4,062,268
    • Issue date Dec 13, 1977
    • Joy Manufacturing Company
    • George A. Hibbard
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer
    • Patent number 4,012,909
    • Issue date Mar 22, 1977
    • George A. Hibbard
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Air manifold and delivery passageways for rock drill
    • Patent number 3,998,279
    • Issue date Dec 21, 1976
    • Joy Manufacturing Company
    • Edward A. Bailey
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Bit coupling means
    • Patent number 3,942,838
    • Issue date Mar 9, 1976
    • Joy Manufacturing Company
    • Edward A. Bailey
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS