North American Refractories Co. Inc.

Organization

  • Cleveland, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Refractory gas purging device

    • Patent number 5,478,053
    • Issue date Dec 26, 1995
    • North American Refractories Co. Inc.
    • Tomas Richter
    • B22 - CASTING POWDER METALLURGY

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