TREA

David A. Kesselman

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  • Santa Rosa, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tamper proof anchor bolt assembly
    • Patent number 5,228,250
    • Issue date Jul 20, 1993
    • David A. Kesselman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetic lock
    • Patent number 4,815,304
    • Issue date Mar 28, 1989
    • David A. Kesselman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tamper deterrent assembly
    • Patent number 4,699,408
    • Issue date Oct 13, 1987
    • David A. Kesselman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES