CPC Subgroup
B01D 35/22 Directing the mixture to be filtered on to the filters in a manner to clean the filters
Full Title
Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions > Directing the mixture to be filtered on to the filters in a manner to clean the filters