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Rake classifier
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Patent number 4,853,115
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Issue date Aug 1, 1989
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Dorr-Oliver Incorporated
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George W. Kennel
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Ore concentrator
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Patent number 4,584,098
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Issue date Apr 22, 1986
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Winston Wright
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Dewatering and classifying apparatus
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Patent number 3,966,592
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Issue date Jun 29, 1976
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Daniel H. Herbert
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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3796315
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Patent number 3,796,315
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Issue date Mar 12, 1974
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2960231
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Patent number 2,960,231
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Issue date Nov 15, 1960
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2720972
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Patent number 2,720,972
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Issue date Oct 18, 1955
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2678721
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Patent number 2,678,721
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Issue date May 18, 1954
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2647631
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Patent number 2,647,631
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Issue date Aug 4, 1953
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2611474
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Patent number 2,611,474
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Issue date Sep 23, 1952
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2584076
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Patent number 2,584,076
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Issue date Jan 29, 1952
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2445251
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Patent number 2,445,251
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Issue date Jul 13, 1948
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2437760
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Patent number 2,437,760
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Issue date Mar 16, 1948
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2376825
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Patent number 2,376,825
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Issue date May 22, 1945
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2280209
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Patent number 2,280,209
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Issue date Apr 21, 1942
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2277817
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Patent number 2,277,817
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Issue date Mar 31, 1942
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2259231
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Patent number 2,259,231
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Issue date Oct 14, 1941
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2191743
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Patent number 2,191,743
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Issue date Feb 27, 1940
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2191744
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Patent number 2,191,744
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Issue date Feb 27, 1940
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2163285
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Patent number 2,163,285
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Issue date Jun 20, 1939
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2155748
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Patent number 2,155,748
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Issue date Apr 25, 1939
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2141133
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Patent number 2,141,133
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Issue date Dec 20, 1938
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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2140180
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Patent number 2,140,180
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Issue date Dec 13, 1938
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2111082
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Patent number 2,111,082
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Issue date Mar 15, 1938
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2042444
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Patent number 2,042,444
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Issue date May 26, 1936
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2025690
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Patent number 2,025,690
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Issue date Dec 24, 1935
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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2015008
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Patent number 2,015,008
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Issue date Sep 17, 1935
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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1997379
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Patent number 1,997,379
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Issue date Apr 9, 1935
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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1971153
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Patent number 1,971,153
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Issue date Aug 21, 1934
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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1925518
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Patent number 1,925,518
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Issue date Sep 5, 1933
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...