IPC Subgroup
F04B 25/02 of stepped-piston type
Introduced: September 1968
Last revised: January 2006
Full Title
Multi-stage pumps specially adapted for elastic fluids > of stepped-piston type
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- Subclass:
- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS