TREA

Joseph W. Woolfson

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  • Brooklyn, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sound muffling device for an air conditioning unit
    • Patent number 6,644,061
    • Issue date Nov 11, 2003
    • Joseph W. Woolfson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Magnetic lock
    • Patent number 4,380,162
    • Issue date Apr 19, 1983
    • Joseph W. Woolfson
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Magnetic lock
    • Patent number 4,026,134
    • Issue date May 31, 1977
    • Joseph W. Woolfson
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES