pdf Railway Train Dispatching Telephone Systems 1934 [LARGE FILE] Popular
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WE_1934_RailwayTrainDispatchingTelSys.pdf
49MB. 121 pages. 1934. T-1148. Western Electric. Description of system, and products. Selector Calling Equipment, Selector Keys, Way station selector equipment, telephones, desk set boxes, 100E loud speaker set, foot switches, maintenance tests, parts. Contributed by Jeff Seidel.
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