CPC Subgroup
B01D 25/281 Full Title
Filters formed by clamping together several filtering elements or parts of such elements (disc filters B01D29/39) > Leaching or washing filter cakes in the filter
B01D 25/281 Filters formed by clamping together several filtering elements or parts of such elements (disc filters B01D29/39) > Leaching or washing filter cakes in the filter