IPC Subgroup
B01D 39/02 Loose filtering material, e.g. loose fibres
Introduced: September 1968
Last revised: January 2006
Full Title
Filtering material for liquid or gaseous fluids > Loose filtering material, e.g. loose fibres
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
2 direct subcodes
Child Classifications
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- B01D 39/04 Organic material, e.g. cellulose, cotton
- B01D 39/06 Inorganic material, e.g. asbestos fibres, glass beads or fibres