W-B-411 Revision A:1961
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The latest, up-to-date edition.
BLASTING MACHINE, GALVANOMETER, BLASTING, RESISTOR ASSEMBLY
Gives various hand-operated generators (blasting machines) for detonating electric blasting caps or electric squibs; one type of galvanometer for checking electrical blasting circuits for proper continuity; and one type resistor assembly for testing blasting machines.
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