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Stanley W. Widmer

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  • Browerville, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Card-activated lock mechanism
    • Patent number 5,573,098
    • Issue date Nov 12, 1996
    • Minnesota Lock, Inc.
    • Stanley W. Widmer
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Railroad track switch covers and heater
    • Patent number 4,671,475
    • Issue date Jun 9, 1987
    • Stanley Widmer Associates
    • Stanley W. Widmer
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES