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Irwin J. Grabel

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  • Elmwood Park, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable position flipper mechanism for pinball games
    • Patent number 4,971,324
    • Issue date Nov 20, 1990
    • Midway Manufacturing Company
    • Irwin J. Grabel
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Multi-position drop target
    • Patent number 4,943,061
    • Issue date Jul 24, 1990
    • Williams Electronics Games, Inc.
    • Irwin J. Grabel
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    In-line drop targets
    • Patent number 4,257,604
    • Issue date Mar 24, 1981
    • Bally Manufacturing Corporation
    • Irwin J. Grabel
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Seesaw targets apparatus for pinball game
    • Patent number 4,243,222
    • Issue date Jan 6, 1981
    • Bally Manufacturing Corporation
    • Irwin J. Grabel
    • A63 - SPORTS GAMES AMUSEMENTS