IPC Subgroup
B01D 39/1 Filter screens essentially made of metal
Introduced: September 1968
Last revised: January 2006
Full Title
Filtering material for liquid or gaseous fluids > Filter screens essentially made of metal
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
1 direct subcode
Child Classifications
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- B01D 39/12 of wire gauze; of knitted wire; of expanded metal