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Multi-piston pump/compressor
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Patent number 7,794,212
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Issue date Sep 14, 2010
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Rodney D. Hugelman
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Piston assembly
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Patent number 7,185,578
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Issue date Mar 6, 2007
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R. Sanderson Management
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Robert A. Sanderson
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Piston assembly
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Patent number 7,007,589
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Issue date Mar 7, 2006
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R. Sanderson Management, Inc.
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Robert A. Sanderson
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Wobble plate piston mechanism
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Patent number 6,928,919
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Issue date Aug 16, 2005
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LuK Fahrzeug-Hydraulik GmbH & Co., KG
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Willi Parsch
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Pump piston
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Patent number 5,850,775
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Issue date Dec 22, 1998
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Robert Bosch GmbH
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Hans-Peter Stiefel
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Electric actuator for swashplate
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Patent number 4,994,004
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Issue date Feb 19, 1991
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Stirling Thermal Motors, Inc.
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Roelf J. Meijer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Cam plate type axial piston pump
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Patent number 4,825,753
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Issue date May 2, 1989
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Kayaba Industry Co., Ltd.
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Kiyoshi Inoue
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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High speed medical ventilator
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Patent number 4,495,947
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Issue date Jan 29, 1985
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Imasco-CDC Research Foundation
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Jiri Motycka
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Wabbler plate engine mechanisms
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Patent number 4,433,596
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Issue date Feb 28, 1984
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Joseph Scalzo
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3590662
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Patent number 3,590,662
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Issue date Jul 6, 1971
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3541892
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Patent number 3,541,892
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Issue date Nov 24, 1970
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3063381
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Patent number 3,063,381
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Issue date Nov 13, 1962
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2872876
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Patent number 2,872,876
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Issue date Feb 10, 1959
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2454578
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Patent number 2,454,578
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Issue date Nov 23, 1948
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2344517
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Patent number 2,344,517
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Issue date Mar 21, 1944
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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2331046
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Patent number 2,331,046
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Issue date Oct 5, 1943
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2283242
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Patent number 2,283,242
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Issue date May 19, 1942
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2241651
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Patent number 2,241,651
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Issue date May 13, 1941
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...