TREA

Clive A. Herrod

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  • Derby, GB
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  • Information Patent Grant

    Method of expanding tubular members
    • Patent number 4,320,568
    • Issue date Mar 23, 1982
    • Northern Engineering Industries Limited
    • Clive A. Herrod
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...