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Different types of portable electric firing machines used for blasting; magneto-electric machines for firing about 10 charges; dynamo-electric firing machines for from 80 to 100 charges; Siemens-Schuckert firing switches; wiring diagrams for firing number of successive charges.
Different types of portable electric firing machines used for blasting; magneto-electric machines for firing about 10 charges; dynamo-electric firing machines for from 80 to 100 charges; Siemens-Schuckert firing switches; wiring diagrams for firing number of successive charges.
Electric firing devices
Die Verwendung von Zuendmaschinen, Schiesschalter fur Starkstrom bei der bergmaennischen Schiessarbeit
Heyer, B. (author)
1928
5 pages
14 Figs.
Article (Journal)
German
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