Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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F15C
FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
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1/00
Circuit elements having no moving parts
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F15C1/14
Stream-interaction devices; Momentum-exchange devices, e.g. operating by exchange between two orthogonal fluid jets; ; Proportional amplifiers
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