CPC Subgroup
B01D 39/14 Other self-supporting filtering material
Full Title
Filtering material for liquid or gaseous fluids > Other self-supporting filtering material
2 direct subcodes
Child Classifications
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- B01D 39/16 of organic material, e.g. synthetic fibres
- B01D 39/20 of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires (porous ceramic material ; sintering metals C22C1/04; )