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F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
F04C21/00—Oscillating-piston pumps specially adapted for elastic fluids
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FR385713D1907-09-101907-09-10Perfectionnements aux compresseurs d'air
ExpiredFR385713A
(fr)