IPC Subgroup
F04B 37/04 Selection of specific absorption or adsorption materials
Introduced: September 1968
Last revised: January 2006
Full Title
Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups > for evacuating by absorption or adsorption > Selection of specific absorption or adsorption materials
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