TREA

Douglas A. Browning

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  • Sykesville, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Torque measuring device
    • Patent number 4,475,408
    • Issue date Oct 9, 1984
    • Baltimore Therapeutic Equipment Company
    • Douglas Browning
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Electric ratchet
    • Patent number 4,473,226
    • Issue date Sep 25, 1984
    • Baltimore Therapeutic Equipment Company
    • Nathan Siegel
    • A63 - SPORTS GAMES AMUSEMENTS