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Low power miniature hydraulic actuator
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Patent number 6,543,544
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Issue date Apr 8, 2003
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Halliburton Energy Services, Inc.
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Roger L. Schultz
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Marine steering apparatus
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Patent number 5,471,907
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Issue date Dec 5, 1995
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Kobelt Manufacturing Co. Ltd.
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Jacob Kobelt
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Marine steering apparatus
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Patent number 5,289,756
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Issue date Mar 1, 1994
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Kobelt Manufacturing Co. Ltd.
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Jacob Kobelt
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Servo amplification system
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Patent number 4,394,102
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Issue date Jul 19, 1983
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Clipp Control Corporation
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Clarence F. Batchelder
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Hydraulic positioning cylinder
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Patent number 3,996,839
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Issue date Dec 14, 1976
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Glen A. Norwood
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Hydraulic steering unit
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Patent number 3,995,533
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Issue date Dec 7, 1976
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Danfoss A/S
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Ulf Martin von Huth Smith
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Control arrangement
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Patent number 3,986,475
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Issue date Oct 19, 1976
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Kenneth R. Heiser
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3473324
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Patent number 3,473,324
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Issue date Oct 21, 1969
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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3468126
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Patent number 3,468,126
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Issue date Sep 23, 1969
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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3436915
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Patent number 3,436,915
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Issue date Apr 8, 1969
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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3402553
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Patent number 3,402,553
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Issue date Sep 24, 1968
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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3400537
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Patent number 3,400,537
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Issue date Sep 10, 1968
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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3326317
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Patent number 3,326,317
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Issue date Jun 20, 1967
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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3320745
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Patent number 3,320,745
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Issue date May 23, 1967
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3246472
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Patent number 3,246,472
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Issue date Apr 19, 1966
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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3218805
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Patent number 3,218,805
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Issue date Nov 23, 1965
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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3182443
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Patent number 3,182,443
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Issue date May 11, 1965
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2980072
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Patent number 2,980,072
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Issue date Apr 18, 1961
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2304831
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Patent number 2,304,831
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Issue date Dec 15, 1942
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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2238062
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Patent number 2,238,062
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Issue date Apr 15, 1941
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...