CPC Subgroup
B01D 24/34 with the filtering material and its pervious support moving (tipping buckets, trays or like sections B01D33/327)
Full Title
Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (B01D27/02 takes precedence) > with the filtering material and its pervious support moving (tipping buckets, trays or like sections B01D33/327)