TREA

Peter A. Walker

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  • Halifax, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making castellated beams
    • Patent number 4,894,898
    • Issue date Jan 23, 1990
    • Wescol Structures Limited
    • Peter A. Walker
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...