DIFF Subgroup
F42D 1/05 Electric circuits for blasting
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Blasting methods or apparatus, e.g. for loading or tamping > Arrangements for ignition > Arrangements for electric ignition > Electric circuits for blasting
CPC:
Blasting methods or apparatus, e.g. loading or tamping > Arrangements for ignition > Arrangements for electric ignition (dynamo-electric generators H02K) > Electric circuits for blasting
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- F42D 1/055 specially adapted for firing multiple charges with a time delay since 1990 IPC+CPC Available in IPC and CPC