TREA

Mark A. Lawrence

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  • Mesa, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Door holding magnet
    • Patent number 4,669,766
    • Issue date Jun 2, 1987
    • Hanchett Entry Systems, Inc.
    • Leland J. Hanchett
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Concealed door release mechanism
    • Patent number 4,626,010
    • Issue date Dec 2, 1986
    • Hanchett Entry Systems, Inc.
    • Leland J. Hanchett
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Dead bolt sensing and strike closing mechanism
    • Patent number 4,595,220
    • Issue date Jun 17, 1986
    • Hanchett Entry Systems, Inc.
    • Leland J. Hanchett
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES