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Valve for molten metal conduit
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Patent number 5,253,848
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Issue date Oct 19, 1993
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Inco Alloys International, Inc.
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Robert D. Saunders
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B22 - CASTING POWDER METALLURGY
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Cooling of materials
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Issue date Sep 22, 1987
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British Steel Corporation
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Gene D. Spenceley
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B22 - CASTING POWDER METALLURGY
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Holloware for uphill teeming
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Patent number 4,356,994
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Issue date Nov 2, 1982
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Dyson Refractories Limited
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James M. Thornton
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B22 - CASTING POWDER METALLURGY
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3599708
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Patent number 3,599,708
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Issue date Aug 17, 1971
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B22 - CASTING POWDER METALLURGY
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3501125
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B22 - CASTING POWDER METALLURGY
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3282551
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Issue date Nov 1, 1966
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B22 - CASTING POWDER METALLURGY
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3237909
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Patent number 3,237,909
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Issue date Mar 1, 1966
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B22 - CASTING POWDER METALLURGY
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2475805
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Issue date Jul 12, 1949
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B22 - CASTING POWDER METALLURGY
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1997907
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Issue date Apr 16, 1935
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B22 - CASTING POWDER METALLURGY
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1890027
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Issue date Dec 6, 1932
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B22 - CASTING POWDER METALLURGY
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1757549
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Issue date May 6, 1930
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B22 - CASTING POWDER METALLURGY
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1723601
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Issue date Aug 6, 1929
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B22 - CASTING POWDER METALLURGY
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1693076
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B22 - CASTING POWDER METALLURGY
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1574589
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B22 - CASTING POWDER METALLURGY
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1533067
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B22 - CASTING POWDER METALLURGY