William C. Douglas

Person

  • Paradise Valley, AZ, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Tennis racquet

    • Patent number 5,374,058
    • Issue date Dec 20, 1994
    • GenCorp Inc.
    • Richard Janes
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Tennis racquet

    • Patent number 5,219,165
    • Issue date Jun 15, 1993
    • GenCorp Inc.
    • Richard Janes
    • A63 - SPORTS GAMES AMUSEMENTS