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Mixing device for mortar
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Patent number 4,995,729
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Issue date Feb 26, 1991
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Babcock-BSH Aktiengesellschaft, vormals Buttner-Schilde-Haas AG
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Kurt Eberhardt
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B28 - WORKING CEMENT, CLAY, OR STONE
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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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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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3457047
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Patent number 3,457,047
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Issue date Jul 22, 1969
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3269660
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Patent number 3,269,660
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Issue date Aug 30, 1966
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3051454
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Patent number 3,051,454
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Issue date Aug 28, 1962
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2273835
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Patent number 2,273,835
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Issue date Feb 24, 1942
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2254042
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Patent number 2,254,042
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Issue date Aug 26, 1941
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A21 - BAKING EDIBLE DOUGHS
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2203673
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Patent number 2,203,673
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Issue date Jun 11, 1940
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2146776
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Patent number 2,146,776
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Issue date Feb 14, 1939
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES