TREA

Dwayne K. Steenhoek

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  • Pella, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe end shaper tool
    • Patent number 4,087,997
    • Issue date May 9, 1978
    • Dwayne K. Steenhoek
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...