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Francis A. Jamell

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  • Marshalltown, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrical tool
    • Patent number 3,956,950
    • Issue date May 18, 1976
    • Francis A. Jamell
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...