TREA

Donald L. Theobald

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  • Kettering, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Forging apparatus
    • Patent number 4,543,812
    • Issue date Oct 1, 1985
    • The Harris-Thomas Drop Forge Company
    • Donald L. Theobald
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Forging method
    • Patent number 4,463,590
    • Issue date Aug 7, 1984
    • The Harris-Thomas Drop Forge Company
    • Donald L. Theobald
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...