Cover image for Centralized traffic control, type F, class M, duplex, coded system description of circuits.
Title:
Centralized traffic control, type F, class M, duplex, coded system description of circuits.
Author:
General Railway Signal Company.
Publication Information:
Rochester, N.Y. : General railway signal company [1937]

[©1937]
Physical Description:
165 pages including frontispiece, illustrations : plates, diagrams (part folded) ; 23 cm
General Note:
"Handbook 15 ... March, 1937."
Language:
English
Format :
Book

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DEWEY COLL. 625.16 14 Adult Non-Fiction Central Closed Stacks-Non circulating
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