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Molding machine
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Patent number 8,251,124
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Issue date Aug 28, 2012
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Sintokogio, Ltd.
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Minoru Hirata
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B22 - CASTING POWDER METALLURGY
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3709282
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Patent number 3,709,282
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Issue date Jan 9, 1973
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B22 - CASTING POWDER METALLURGY
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2782471
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Patent number 2,782,471
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Issue date Feb 26, 1957
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B22 - CASTING POWDER METALLURGY