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Method of assembling molds
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Patent number 4,702,298
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Issue date Oct 27, 1987
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TRW Inc.
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William S. Blazek
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B22 - CASTING POWDER METALLURGY
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Method of making a mold
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Patent number 4,315,537
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Issue date Feb 16, 1982
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TRW Inc.
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William S. Blazek
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B22 - CASTING POWDER METALLURGY
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Method of assembling molds
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Patent number 4,224,976
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Issue date Sep 30, 1980
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TRW Inc.
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William S. Blazek
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B22 - CASTING POWDER METALLURGY
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Method of making a mold
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Patent number 4,043,379
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Issue date Aug 23, 1977
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TRW Inc.
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William S. Blazek
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B22 - CASTING POWDER METALLURGY