IPC Main Group
B01D 39/00 Filtering material for liquid or gaseous fluids
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
4 direct subcodes
Child Classifications
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- B01D 39/02 Loose filtering material, e.g. loose fibres
- B01D 39/08 Filter cloth, i.e. woven, knitted or interlaced material
- B01D 39/1 Filter screens essentially made of metal
- B01D 39/14 Other self-supporting filtering material