Atmospheric engines, i.e. atmosphere acting against vacuum

Full Title

Machines or engines with pertinent characteristics other than those provided for in main groups > Atmospheric engines, i.e. atmosphere acting against vacuum

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

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

Subclass:

MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES