TREA

Newman; John C.

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  • Longview, TX, US
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  • Information Patent Grant

    Cleaning sluice boxes
    • Patent number 4,962,858
    • Issue date Oct 16, 1990
    • Newman; John C.
    • John C. Newman
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

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