TREA

Leif A. Holan

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  • Clear Lake Highlands, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hinge
    • Patent number 4,891,862
    • Issue date Jan 9, 1990
    • Leif A. Holan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Self-closing hinge
    • Patent number 4,819,299
    • Issue date Apr 11, 1989
    • Leif A. Holan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES