TREA

William C. Le Master

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  • Ankeny, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flow drilling process and tool therefor
    • Patent number 4,428,214
    • Issue date Jan 31, 1984
    • Deere & Company
    • Glenn D. Head
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...