TREA

Douglas A. Barth

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  • Sinclairville, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ratchet escapement coin counter
    • Patent number 4,423,805
    • Issue date Jan 3, 1984
    • American Locker Security Systems, Inc.
    • Douglas A. Barth
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin operated lock
    • Patent number 4,153,150
    • Issue date May 8, 1979
    • American Locker Security Systems, Inc.
    • Douglas A. Barth
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin operated lock
    • Patent number 4,131,191
    • Issue date Dec 26, 1978
    • American Locker Security Systems, Inc.
    • Douglas A. Barth
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Locker
    • Patent number D248138
    • Issue date Jun 13, 1978
    • American Locker Security Systems, Inc.
    • Wells F. Stackhouse
    • D06 - Furnishings
  • Information Patent Grant

    Coin operated lock
    • Patent number 3,938,640
    • Issue date Feb 17, 1976
    • American Locker Company, Inc.
    • Wells F. Stackhouse
    • G07 - CHECKING-DEVICES