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3755240
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Patent number 3,755,240
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Issue date Aug 28, 1973
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B22 - CASTING POWDER METALLURGY
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3668160
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Patent number 3,668,160
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Issue date Jun 6, 1972
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B22 - CASTING POWDER METALLURGY
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3645942
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Patent number 3,645,942
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Issue date Feb 29, 1972
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B22 - CASTING POWDER METALLURGY
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3632844
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Patent number 3,632,844
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Issue date Jan 4, 1972
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B22 - CASTING POWDER METALLURGY
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3535252
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Patent number 3,535,252
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Issue date Oct 20, 1970
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B22 - CASTING POWDER METALLURGY
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3431969
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Patent number 3,431,969
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Issue date Mar 11, 1969
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B22 - CASTING POWDER METALLURGY
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3426831
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Patent number 3,426,831
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Issue date Feb 11, 1969
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B22 - CASTING POWDER METALLURGY
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3255500
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Patent number 3,255,500
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B22 - CASTING POWDER METALLURGY
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3227564
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Patent number 3,227,564
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Issue date Jan 4, 1966
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B22 - CASTING POWDER METALLURGY
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3220963
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Patent number 3,220,963
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Issue date Nov 30, 1965
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B22 - CASTING POWDER METALLURGY
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3196770
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Patent number 3,196,770
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B22 - CASTING POWDER METALLURGY
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3055761
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Patent number 3,055,761
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B22 - CASTING POWDER METALLURGY
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3053671
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B22 - CASTING POWDER METALLURGY
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3023112
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Patent number 3,023,112
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Issue date Feb 27, 1962
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B22 - CASTING POWDER METALLURGY
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2993796
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B22 - CASTING POWDER METALLURGY
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2967338
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B22 - CASTING POWDER METALLURGY
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2963456
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B22 - CASTING POWDER METALLURGY
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2861966
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B22 - CASTING POWDER METALLURGY
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2847388
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B22 - CASTING POWDER METALLURGY