CPC Subgroup
B04B 7/18 formed or coated with sieving or filtering elements (filters in general B01D; sieves in general B07B)
Full Title
Elements of centrifuges (drives B04B9/00; feeding, charging, or discharging appurtenances or devices B04B11/00) > Rotary bowls (centrifugal casting machines B22D) > formed or coated with sieving or filtering elements (filters in general B01D; sieves in general B07B)