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PCE
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CPC Subgroup
F42C 15/21

using spring action (F42C15/32 takes precedence)

Full Title

Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges > wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin ( F42C15/40 take precedence) > using spring action (F42C15/32 takes precedence)