Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES

Subclass:

ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES