Inside Out Library

Specifications for the multiplex printing telegraph system : theory and operation (1920)

Western Union Telegraph Company · [New York?] : The Company · leaf 240

An illustration from Specifications for the multiplex printing telegraph system : theory and operation, 1920, leaf 240 — If) z> ;: yz , o Zr -^ q o 0) CO o r hj 10 k>g <\J O (M … +

Telegraph

Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.

More pictures from Specifications for the multiplex printing telegraph system : theory and operation

More like this