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Robert D. Hambrick

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  • Havana, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Friction shock assembly for a forging hammer
    • Patent number 4,398,409
    • Issue date Aug 16, 1983
    • National-Standard Company
    • Robert D. Hambrick
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...