DIFF Subgroup
E21F 5/20 Drawing-off or depositing dust (; while slitting E21C35/22)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Drawing-off or depositing dust
CPC: Drawing-off or depositing dust (; while slitting E21C35/22)
Full Title
Full titles differ between systems:
IPC:
Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires > Drawing-off or depositing dust
CPC:
Means or methods for preventing, binding, depositing, or removing dust ; Preventing explosions or fires (dams E21F17/103; applying liquids or other fluent materials to surfaces in general B05) > Drawing-off or depositing dust (; while slitting E21C35/22)
No child classifications to compare. This is a leaf node in both IPC and CPC.