TREA

Gerald A. Gieseker

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  • Arvada, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Maze-type locking device
    • Patent number 5,148,692
    • Issue date Sep 22, 1992
    • Gerald A. Gieseker
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Maze device
    • Patent number 4,974,848
    • Issue date Dec 4, 1990
    • Gerald A. Gieseker
    • A63 - SPORTS GAMES AMUSEMENTS