TREA

John J. Pickering

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  • North Providence, RI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Crankcase ventilator
    • Patent number 4,881,511
    • Issue date Nov 21, 1989
    • John J. Pickering
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Automobile exhaust gas cleaner
    • Patent number 4,821,513
    • Issue date Apr 18, 1989
    • John J. Pickering
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Bolt locks for freight car, trailer truck and air cargo doors
    • Patent number 3,950,018
    • Issue date Apr 13, 1976
    • John J. Pickering
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES