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Casting apparatus
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Patent number 4,730,659
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Issue date Mar 15, 1988
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IMI Refiners Ltd.
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Peter J. Clark
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B22 - CASTING POWDER METALLURGY
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Composite break ring method
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Patent number 4,715,423
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Issue date Dec 29, 1987
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Flo-Con Systems, Inc.
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Patrick D. King
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B22 - CASTING POWDER METALLURGY
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Casting apparatus
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Patent number 4,640,335
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Issue date Feb 3, 1987
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IMI Refiners Ltd.
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Peter J. Clark
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B22 - CASTING POWDER METALLURGY
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Lead casting seal
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Patent number 4,150,714
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Issue date Apr 24, 1979
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General Motors Corporation
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Larry P. Atkins
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B22 - CASTING POWDER METALLURGY
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3752218
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Patent number 3,752,218
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Issue date Aug 14, 1973
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B22 - CASTING POWDER METALLURGY