TREA

Robert Yellen

Follow

Person

  • Lighthouse Point, FL, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Rowing exercise device
    • Patent number 4,647,035
    • Issue date Mar 3, 1987
    • Robert Yellen
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Practice tennis device
    • Patent number 4,101,128
    • Issue date Jul 18, 1978
    • Robert Yellen
    • A63 - SPORTS GAMES AMUSEMENTS