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3884288
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Issue date May 20, 1975
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B22 - CASTING POWDER METALLURGY
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3536124
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Patent number 3,536,124
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Issue date Oct 27, 1970
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B22 - CASTING POWDER METALLURGY
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3528479
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Patent number 3,528,479
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Issue date Sep 15, 1970
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B22 - CASTING POWDER METALLURGY
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3465811
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Patent number 3,465,811
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B22 - CASTING POWDER METALLURGY
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3375862
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Patent number 3,375,862
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Issue date Sep 29, 1959
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B22 - CASTING POWDER METALLURGY