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Air set sand molding apparatus
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Issue date Jun 4, 2019
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Wisconsin Aluminum Foundry Company
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Mark Vohl
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B22 - CASTING POWDER METALLURGY
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3387645
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Patent number 3,387,645
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Issue date Jun 11, 1968
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B22 - CASTING POWDER METALLURGY
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2532634
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Issue date Dec 5, 1950
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B22 - CASTING POWDER METALLURGY
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2340972
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Issue date Feb 8, 1944
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B22 - CASTING POWDER METALLURGY
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2238785
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Patent number 2,238,785
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B22 - CASTING POWDER METALLURGY
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2109922
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B22 - CASTING POWDER METALLURGY
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2076790
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Patent number 2,076,790
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B22 - CASTING POWDER METALLURGY
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1939885
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B22 - CASTING POWDER METALLURGY
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1664260
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B22 - CASTING POWDER METALLURGY
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1457439
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Issue date Jun 5, 1923
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B22 - CASTING POWDER METALLURGY