TREA

Marvin H. Greenwood

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Scooter with simple harmonic drive
    • Patent number 5,224,724
    • Issue date Jul 6, 1993
    • Marvin H. Greenwood
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Sailboard
    • Patent number 5,211,123
    • Issue date May 18, 1993
    • Marvin H. Greenwood
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT