Definitions; types; historical review; application; track layout; inside apparatus; 361 questions dealing with interlocking.
Interlocking
Am. Ry. Signaling Principles Practices
American Railway Signaling Principles and Practices ; Chapter 16
1931
65 pages
43 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1930
Engineering Index Backfile | 1930