DIFF Subgroup
E21F 5/08 Rock dusting of mines; Depositing other protective substances
Introduced: September 1968
Title
Titles differ between systems:
IPC: Rock dusting; Depositing other protective substances
CPC: Rock dusting of mines; Depositing other protective substances
Full Title
Full titles differ between systems:
IPC:
Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires > Rock dusting; Depositing other protective substances
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) > Rock dusting of mines; Depositing other protective substances
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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