Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F42
AMMUNITION; BLASTING
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F42D
BLASTING
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1/00
Blasting methods or apparatus, e.g. loading or tamping
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F42D1/04
Arrangements for ignition
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F42D1/045
Arrangements for electric ignition
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F42D1/05
Electric circuits for blasting
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