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Core sand filling method
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Patent number 9,339,866
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Issue date May 17, 2016
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Sintokogio, Ltd.
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Shigeyoshi Kato
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B22 - CASTING POWDER METALLURGY
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2221130
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Patent number 2,221,130
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Issue date Nov 12, 1940
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B22 - CASTING POWDER METALLURGY
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1961656
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Patent number 1,961,656
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Issue date Jun 5, 1934
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B22 - CASTING POWDER METALLURGY
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1530912
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Patent number 1,530,912
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Issue date Mar 24, 1925
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B22 - CASTING POWDER METALLURGY
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1441048
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Patent number 1,441,048
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Issue date Jan 2, 1923
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B22 - CASTING POWDER METALLURGY
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986980
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Patent number 986,980
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Issue date Mar 14, 1911
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B22 - CASTING POWDER METALLURGY
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950184
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Patent number 950,184
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Issue date Feb 22, 1910
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B22 - CASTING POWDER METALLURGY
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927848
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Patent number 927,848
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Issue date Jul 13, 1909
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B22 - CASTING POWDER METALLURGY
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906005
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Patent number 906,005
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Issue date Dec 8, 1908
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B22 - CASTING POWDER METALLURGY
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898734
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Patent number 898,734
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Issue date Sep 15, 1908
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B22 - CASTING POWDER METALLURGY
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886927
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Patent number 886,927
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Issue date May 5, 1908
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B22 - CASTING POWDER METALLURGY
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866852
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Patent number 866,852
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Issue date Sep 24, 1907
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B22 - CASTING POWDER METALLURGY
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828567
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Patent number 828,567
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Issue date Aug 14, 1906
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B22 - CASTING POWDER METALLURGY
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824433
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Patent number 824,433
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Issue date Jun 26, 1906
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B22 - CASTING POWDER METALLURGY
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796764
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Patent number 796,764
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Issue date Aug 8, 1905
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B22 - CASTING POWDER METALLURGY
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746779
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Patent number 746,779
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Issue date Dec 15, 1903
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B22 - CASTING POWDER METALLURGY
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699710
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Patent number 699,710
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Issue date May 13, 1902
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B22 - CASTING POWDER METALLURGY
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698767
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Patent number 698,767
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Issue date Apr 29, 1902
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B22 - CASTING POWDER METALLURGY
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673795
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Patent number 673,795
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Issue date May 7, 1901
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B22 - CASTING POWDER METALLURGY
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513998
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Patent number 513,998
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Issue date Feb 6, 1894
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B22 - CASTING POWDER METALLURGY
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512289
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Patent number 512,289
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Issue date Jan 9, 1894
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B22 - CASTING POWDER METALLURGY