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
F04B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Load children
F04B25/04
having cylinders coaxial with, or parallel or inclined to, main shaft axis
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