DIFF Subgroup
B04C 5/15 with swinging flaps or revolving sluices; Sluices; Check-valves
Introduced: September 1968
Full Title
Apparatus in which the axial direction of the vortex is reversed > Construction of the underflow ducting; Apex constructions; Discharge arrangements > with swinging flaps or revolving sluices; Sluices; Check-valves
No child classifications to compare. This is a leaf node in both IPC and CPC.