BD-74

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BD-74 Switchboard 8751777733 l.jpg

Related files

Adobe PDF icon.png BD-74 Preliminary Instructions

Description and Operating instructions for the
Fire Control Communications
Switchboard
BD-74
Combinations A to F
April 3, 1934


Adobe PDF icon.png Signal Corps Repair Standard REP-750

Repaired Equipment Standard
Switchboard
BD-74
26 March 1953
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