TREA

John J. Risko

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  • Salem, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pushbutton lock
    • Patent number 4,936,894
    • Issue date Jun 26, 1990
    • Supra Products, Inc.
    • Wayne F. Larson
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key
    • Patent number 4,895,036
    • Issue date Jan 23, 1990
    • Supra Products, Inc.
    • Wayne F. Larson
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES