Publisher: Interstate Commerce Commission / Catalog Issue Year Decade: 1940 - 1949 / Sudoc Stem: IC 1 blo.5 - Blacklight Search Results

Start Over Publisher Interstate Commerce Commission Catalog Issue Year Decade 1940 - 1949 Sudoc Stem IC 1 blo.5

1. Block signals. Tabulation of statistics pertaining to signals, interlocking, automatic train control, and telegraph and telephone for transmission of train orders, as used on railroads of United States. Jan. 1, 1941; compiled by Bureau of Safety.

Corporate/Agency Authors:: Interstate Commerce Commission
Publisher:: Interstate Commerce Commission
Date:: 1941
SuDoc number:: IC 1 blo.5:941

2. Block signals. Tabulation of statistics pertaining to signals, interlocking, automatic train control, and telegraph and telephone for transmission of train orders as used on railroads of United States, Jan. 1, 1940; compiled by Bureau of Safety.

Corporate/Agency Authors:: Interstate Commerce Commission
Publisher:: Interstate Commerce Commission
Date:: 1940
SuDoc number:: IC 1 blo.5:940