Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Load children
F04
POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
Load children
F04C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
Load children
19/00
Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
Load children Filter patents View analytics View as hierarchy
F04C19/005
Details concerning the admission or discharge
Load children Filter patents View analytics View as hierarchy