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David R. Ibach

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  • Anoka County, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Forging of conical liners
    • Patent number 4,461,162
    • Issue date Jul 24, 1984
    • Honeywell Inc.
    • David R. Ibach
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...