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William D. Ross

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  • Kansas City, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Key blank impressioning tool
    • Patent number 4,300,416
    • Issue date Nov 17, 1981
    • William D. Ross Manufacturing Corporation
    • William D. Ross
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...