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PCE
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CPC Subgroup
F42D 1/05

Electric circuits for blasting

Full Title

Blasting methods or apparatus, e.g. loading or tamping > Arrangements for ignition > Arrangements for electric ignition (dynamo-electric generators H02K) > Electric circuits for blasting

1 direct subcode

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  • F42D 1/055 specially adapted for firing multiple charges with a time delay