TREA

Norman J. Hedman

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  • Hilliard, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rollforming machine
    • Patent number 6,604,397
    • Issue date Aug 12, 2003
    • Dietrich Industries, Inc.
    • Alfred C. Patty
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    Rollforming machine and methods
    • Publication number 20030000271
    • Publication date Jan 2, 2003
    • Alfred C. Patty
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...