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Mixer for resin and sand
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Patent number 4,096,587
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Issue date Jun 20, 1978
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Escher Wyss Limited
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Walter Haller
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B22 - CASTING POWDER METALLURGY
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Granulating apparatus
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Patent number 3,958,764
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Issue date May 25, 1976
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The Carborundum Company
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James H. Carpenter
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B22 - CASTING POWDER METALLURGY
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Mixing apparatus
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Patent number 3,934,859
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Issue date Jan 27, 1976
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Combustion Engineering, Inc.
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Vagn Deve
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B22 - CASTING POWDER METALLURGY
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3929320
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Patent number 3,929,320
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Issue date Dec 30, 1975
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B22 - CASTING POWDER METALLURGY
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3881703
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Patent number 3,881,703
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Issue date May 6, 1975
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B22 - CASTING POWDER METALLURGY
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3850413
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Patent number 3,850,413
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Issue date Nov 26, 1974
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B22 - CASTING POWDER METALLURGY
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3848815
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Patent number 3,848,815
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Issue date Nov 19, 1974
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B22 - CASTING POWDER METALLURGY
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3782643
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Patent number 3,782,643
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Issue date Jan 1, 1974
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B22 - CASTING POWDER METALLURGY
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3712593
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Patent number 3,712,593
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Issue date Jan 23, 1973
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B22 - CASTING POWDER METALLURGY
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3576655
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Patent number 3,576,655
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Issue date Apr 27, 1971
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B28 - WORKING CEMENT, CLAY, OR STONE
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3497144
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Patent number 3,497,144
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Issue date Feb 24, 1970
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B28 - WORKING CEMENT, CLAY, OR STONE
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3331905
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Patent number 3,331,905
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Issue date Jul 18, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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2707314
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Patent number 2,707,314
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Issue date May 3, 1955
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B22 - CASTING POWDER METALLURGY
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2447575
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Patent number 2,447,575
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Issue date Aug 24, 1948
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B22 - CASTING POWDER METALLURGY
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2095385
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Patent number 2,095,385
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Issue date Oct 12, 1937
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B22 - CASTING POWDER METALLURGY
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2034203
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Patent number 2,034,203
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Issue date Mar 17, 1936
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B22 - CASTING POWDER METALLURGY
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1959465
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Patent number 1,959,465
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Issue date May 22, 1934
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B22 - CASTING POWDER METALLURGY
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1907888
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Patent number 1,907,888
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Issue date May 9, 1933
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B22 - CASTING POWDER METALLURGY
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1785161
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Patent number 1,785,161
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Issue date Dec 16, 1930
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B22 - CASTING POWDER METALLURGY
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1769806
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Patent number 1,769,806
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Issue date Jul 1, 1930
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B22 - CASTING POWDER METALLURGY
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1769670
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Patent number 1,769,670
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Issue date Jul 1, 1930
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B22 - CASTING POWDER METALLURGY