TREA

Riley M. Sopko

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  • Palos Verdes Estate, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Key cutting apparatus
    • Patent number 5,244,321
    • Issue date Sep 14, 1993
    • Keymak Company
    • Riley M. Sopko
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Key cutting apparatus
    • Patent number 4,993,291
    • Issue date Feb 19, 1991
    • Keymak Company
    • Riley M. Sopko
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...