Rules, standards, and instructions for installation, inspection, maintenance and repair of automatic block signal systems, interlocking, traffic control systems, automatic train stops, train control, and cab signal systems, and other similar appliances, methods and systems. Effective Oct. 1, 1950.

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Corporate Author
United States. Interstate Commerce Commission.
Language(s)
English
Published
[Washington, U. S. Govt. Print. Off., 1950]
Subjects
Railroads > Safety appliances > [1950].
Railroads > Signaling > [1950].
Note
At head of title: Ex parte no. 171.
Cover title.
Physical Description
48 p. 17 cm.
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