TREA

George V. Douglas

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  • Wheat Ridge, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Travois with roller assembly
    • Patent number 5,005,844
    • Issue date Apr 9, 1991
    • Douglas & Douglas, Inc.
    • George V. Douglas
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Rolling travois
    • Patent number 4,838,565
    • Issue date Jun 13, 1989
    • Douglas & Douglas, Inc.
    • George V. Douglas
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS