TREA

Thorwald J. Mickelson

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  • Excelsior, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Universal joint lock
    • Patent number 4,658,609
    • Issue date Apr 21, 1987
    • Transport Security Inc.
    • Thorwald J. Mickelson
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Kingpin lock
    • Patent number 4,620,718
    • Issue date Nov 4, 1986
    • Cargo Protectors, Inc.
    • Thorwald J. Mickelson
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Lock protecting hasp
    • Patent number 4,372,136
    • Issue date Feb 8, 1983
    • Transportation Security Inc.
    • Thorwald J. Mickelson
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES