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Pressure fluid actuator
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Patent number 4,838,147
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Issue date Jun 13, 1989
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Grigory Grishchenko
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3673924
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Patent number 3,673,924
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Issue date Jul 4, 1972
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3534690
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Patent number 3,534,690
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Issue date Oct 20, 1970
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3318262
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Patent number 3,318,262
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Issue date May 9, 1967
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3175472
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Patent number 3,175,472
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Issue date Mar 30, 1965
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3050152
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Patent number 3,050,152
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Issue date Aug 21, 1962
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B66 - HOISTING LIFTING HAULING
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3045611
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Patent number 3,045,611
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Issue date Jul 24, 1962
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2864341
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Patent number 2,864,341
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Issue date Dec 16, 1958
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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236555
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Patent number 236,555
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Issue date Jan 11, 1881
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL