TREA

Mark A. Amey

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  • Lenhartsville, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable length crank arm
    • Patent number 5,636,554
    • Issue date Jun 10, 1997
    • Mark A. Amey
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS