Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F04
POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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F04D
NON-POSITIVE-DISPLACEMENT PUMPS
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27/00
Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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