CPC Subgroup Additional Only
B01D 2201/30 Filter housing constructions
Full Title
Details relating to filtering apparatus > Filter housing constructions
4 direct subcodes
Child Classifications
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- B01D 2201/301 Details of removable closures, lids, caps, filter heads
- B01D 2201/307 Filtering elements contained in an insert body mounted in a filter housing (double casing), e.g. to avoid contamination when removing or replacing the filter element
- B01D 2201/308 Use of foils, membranes or other means to protect the filter before its use or for protecting the environment, e.g. during removal of the filter
- B01D 2201/309 Housings with transparent parts