IPC Subgroup
F04B 47/14 Counterbalancing
Introduced: September 1968
Last revised: January 2006
Full Title
Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps > Counterbalancing
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