TREA

Winfred L. Dudley

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  • El Cajon, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe stretching apparatus
    • Patent number 4,803,881
    • Issue date Feb 14, 1989
    • Winfred L. Dudley
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...