TREA

C. Norman Sjogren

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  • San Gabriel, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary door and window lock
    • Patent number 4,583,381
    • Issue date Apr 22, 1986
    • Belwith International, Ltd.
    • C. Norman Sjogren
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Sliding door lock
    • Patent number 4,514,996
    • Issue date May 7, 1985
    • Belwith International, Ltd.
    • C. Norman Sjogren
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES