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Multistage servovalves
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Patent number 5,027,858
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Issue date Jul 2, 1991
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Harold Gold
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Hydraulic fuse valve assembly
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Patent number 4,699,166
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Issue date Oct 13, 1987
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Harold Gold
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hydraulic fuse valve
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Patent number 4,465,093
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Issue date Aug 14, 1984
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Harold Gold
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hydraulic fuse valve
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Patent number 4,436,111
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Issue date Mar 13, 1984
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Harold Gold
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Automotive gas turbine fuel control
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Patent number 4,078,378
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Issue date Mar 14, 1978
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The United States of America as represented by the administrator of the Natio...
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Harold Gold
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS