TREA

Ross W. Hoff

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  • Vermilion, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arm exerciser
    • Patent number 5,087,031
    • Issue date Feb 11, 1992
    • Ross W. Hoff
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Arm exerciser
    • Patent number 4,811,944
    • Issue date Mar 14, 1989
    • Ross W. Hoff
    • A63 - SPORTS GAMES AMUSEMENTS