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Pumping system and method
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Patent number 10,823,204
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Issue date Nov 3, 2020
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Le Bemadjiel Djerassem
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Fluid well pumping system
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Patent number 6,558,128
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Issue date May 6, 2003
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John E. Marvel
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Fluid well pump
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Patent number 6,435,838
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Issue date Aug 20, 2002
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John E. Marvel
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E21 - EARTH DRILLING MINING
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Dual chamber liquid pump
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Patent number 6,368,067
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Issue date Apr 9, 2002
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Chemand Corporation
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William A. Stutz
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Water transporting device
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Patent number 6,167,899
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Issue date Jan 2, 2001
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Chung-Min Chen
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Downhole oil well pump
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Patent number 4,395,200
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Issue date Jul 26, 1983
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David S. Anthony
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Sea water lifting device
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Patent number 4,231,712
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Issue date Nov 4, 1980
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Wu Shing-Hsiung
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Fluid lifting apparatus
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Patent number 4,050,854
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Issue date Sep 27, 1977
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Judson A. Hereford
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E21 - EARTH DRILLING MINING
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3736983
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Patent number 3,736,983
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Issue date Jun 5, 1973
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2892416
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Patent number 2,892,416
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Issue date Jun 30, 1959
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2474423
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Patent number 2,474,423
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Issue date Jun 28, 1949
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2467934
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Patent number 2,467,934
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Issue date Apr 19, 1949
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2296220
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Patent number 2,296,220
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Issue date Sep 15, 1942
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E21 - EARTH DRILLING MINING
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2248302
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Patent number 2,248,302
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Issue date Jul 8, 1941
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2131183
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Patent number 2,131,183
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Issue date Sep 27, 1938
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2078435
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Patent number 2,078,435
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Issue date Apr 27, 1937
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2023462
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Patent number 2,023,462
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Issue date Dec 10, 1935
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1960448
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Patent number 1,960,448
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Issue date May 29, 1934
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1875440
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Patent number 1,875,440
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Issue date Sep 6, 1932
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1865676
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Patent number 1,865,676
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Issue date Jul 5, 1932
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1839140
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Patent number 1,839,140
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Issue date Dec 29, 1931
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1811295
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Patent number 1,811,295
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Issue date Jun 23, 1931
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1749151
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Patent number 1,749,151
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Issue date Mar 4, 1930
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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1744361
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Patent number 1,744,361
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Issue date Jan 21, 1930
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E21 - EARTH DRILLING MINING