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Alfred J. Koch

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  • Strongsville, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Golf swing training device
    • Patent number 5,816,929
    • Issue date Oct 6, 1998
    • R. M. & G. Products, Inc.
    • Robert C. Koch
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf swing training device
    • Patent number 5,195,748
    • Issue date Mar 23, 1993
    • Roberts Metals, Inc.
    • Robert C. Koch
    • A63 - SPORTS GAMES AMUSEMENTS