TREA

Lawrence G. Caldwell

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  • Devon, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic stream divider
    • Patent number 4,436,459
    • Issue date Mar 13, 1984
    • The Ducon Company, Inc.
    • Lawrence G. Caldwell
    • C21 - METALLURGY OF IRON