TREA

William F. Ott

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rolled metal piston ring
    • Patent number 4,214,762
    • Issue date Jul 29, 1980
    • Ramsey Corporation
    • Harold E. McCormick
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of making a rolled metal piston ring
    • Patent number 4,085,490
    • Issue date Apr 25, 1978
    • Ramsey Corporation
    • Harold E. McCormick
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR