DIFF Subgroup
E21F 5/02 by wetting or spraying
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires > by wetting or spraying
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) > by wetting or spraying
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E21F 5/04 Spraying barriers (spray nipples, spraying in general B05B, B05D; picks with arrangements of fluid-spraying nozzles E21C35/187) IPC+CPC Available in IPC and CPC