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Hydraulic drive system of work machine
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Patent number 10,676,898
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Issue date Jun 9, 2020
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Hibachi Construction Machinery Tierra Co., Ltd.
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Kiwamu Takahashi
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Hydraulic apparatus
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Patent number 10,519,990
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Issue date Dec 31, 2019
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YANMAR CO., LTD.
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Kazuhiro Owada
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Hydraulic control system and method
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Patent number 10,233,950
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Issue date Mar 19, 2019
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Caterpillar Global Mining LLC
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Marcus Bitter
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Hybrid work machine
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Patent number 10,030,363
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Issue date Jul 24, 2018
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Hitachi Construction Machinery Co., Ltd.
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Shinya Imura
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B60 - VEHICLES IN GENERAL
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Hydraulic system for construction equipment
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Patent number 8,572,957
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Issue date Nov 5, 2013
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Volvo Construction Equipment Holding Sweden AB
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Toshimichi Ikeda
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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3857658
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Patent number 3,857,658
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Issue date Dec 31, 1974
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3579986
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Patent number 3,579,986
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Issue date May 25, 1971
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2972864
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Patent number 2,972,864
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Issue date Feb 28, 1961
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2928244
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Patent number 2,928,244
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Issue date Mar 15, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2807140
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Patent number 2,807,140
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Issue date Sep 24, 1957
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL