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Displacement filter apparatus
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Patent number 8,574,436
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Issue date Nov 5, 2013
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Sean R. Duby
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Displacement filter method
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Patent number 8,133,397
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Issue date Mar 13, 2012
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Sean R. Duby
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Displacement filter apparatus
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Patent number 7,811,454
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Issue date Oct 12, 2010
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Sean R. Duby
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Displacement filter apparatus
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Patent number 6,833,071
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Issue date Dec 21, 2004
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Sean R. Duby
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Pressure filter for liquids
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Patent number 5,362,393
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Issue date Nov 8, 1994
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Karl Brieden Bau-Und Beteiligungs-KG
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Ernst Kuhme
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filtration system
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Patent number 5,279,734
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Issue date Jan 18, 1994
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Barry A. Nehls
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Filtration system
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Patent number 5,221,469
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Issue date Jun 22, 1993
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Hydroflow, Inc.
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Barry A. Nehls
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Vertical drain
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Patent number 4,622,138
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Issue date Nov 11, 1986
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Oleg Wager
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3695447
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Patent number 3,695,447
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Issue date Oct 3, 1972
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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3680706
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Patent number 3,680,706
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Issue date Aug 1, 1972
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3540597
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Patent number 3,540,597
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Issue date Nov 17, 1970
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3491887
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Patent number 3,491,887
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Issue date Jan 27, 1970
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3358843
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Patent number 3,358,843
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Issue date Dec 19, 1967
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3276593
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Patent number 3,276,593
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Issue date Oct 4, 1966
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3217888
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Patent number 3,217,888
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Issue date Nov 16, 1965
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3074561
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Patent number 3,074,561
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Issue date Jan 22, 1963
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2940596
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Patent number 2,940,596
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Issue date Jun 14, 1960
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2691445
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Patent number 2,691,445
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Issue date Oct 12, 1954
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2582311
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Patent number 2,582,311
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Issue date Jan 15, 1952
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2547205
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Patent number 2,547,205
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Issue date Apr 3, 1951
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2540362
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Patent number 2,540,362
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Issue date Feb 6, 1951
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2457449
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Patent number 2,457,449
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Issue date Dec 28, 1948
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2368636
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Patent number 2,368,636
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Issue date Feb 6, 1945
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2364867
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Patent number 2,364,867
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Issue date Dec 12, 1944
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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2336115
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Patent number 2,336,115
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Issue date Dec 7, 1943
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL