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
18/00
Rotary-piston pumps specially adapted for elastic fluids
Load children Filter patents View analytics View as hierarchy
F04C18/08
of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
Load children Filter patents View analytics View as hierarchy
F04C18/12
of other than internal-axis type
Load children Filter patents View analytics View as hierarchy