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3752214
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Issue date Aug 14, 1973
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B22 - CASTING POWDER METALLURGY
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3457986
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Patent number 3,457,986
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Issue date Jul 29, 1969
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B22 - CASTING POWDER METALLURGY
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3364978
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Patent number 3,364,978
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Issue date Jan 23, 1968
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B22 - CASTING POWDER METALLURGY
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3174199
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Issue date Mar 23, 1965
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B22 - CASTING POWDER METALLURGY
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3052001
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Patent number 3,052,001
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B22 - CASTING POWDER METALLURGY
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2829408
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Patent number 2,829,408
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Issue date Apr 8, 1958
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B22 - CASTING POWDER METALLURGY
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2811757
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Patent number 2,811,757
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Issue date Nov 5, 1957
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B22 - CASTING POWDER METALLURGY
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2689989
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Patent number 2,689,989
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Issue date Sep 28, 1954
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B22 - CASTING POWDER METALLURGY
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2618031
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Patent number 2,618,031
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Issue date Nov 18, 1952
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B22 - CASTING POWDER METALLURGY
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2542757
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Patent number 2,542,757
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Issue date Feb 20, 1951
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2509670
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Patent number 2,509,670
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Issue date May 30, 1950
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B22 - CASTING POWDER METALLURGY
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2477092
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Patent number 2,477,092
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Issue date Jul 26, 1949
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B22 - CASTING POWDER METALLURGY
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2442718
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Patent number 2,442,718
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Issue date Jun 1, 1948
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B22 - CASTING POWDER METALLURGY