Railroad track circuits and interlocking
Title:
Railroad track circuits and interlocking
Author:
Rockwell, Ray Robert, 1885-
Personal Author:
Publication Information:
Scranton, Pa. : International textbook company [1933]
[©1932]
Physical Description:
v, 74 pages, 66 pages, 58 pages : illustrations, 2 folded plates, plans (part folded) diagrams ; 20 cm.
Language:
English
Contents:
Track circuits.R̂̂ailroad mechanical interlocking.--Railway electropneumatic interlocking.
Format :
Book