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E&C Williams Inc.

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  • Summerville, SC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing calcium sulfide
    • Patent number 6,337,058
    • Issue date Jan 8, 2002
    • E&C Williams Inc.
    • Charles A. Williams
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...