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, 1939; compiled by Bureau of Safety.
Publication Title:
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, 1939; compiled by Bureau of Safety.
Display Title:
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, 1939; compiled by Bureau of Safety.
Corporate Agency Authors:
Interstate Commerce Commission
Sort Author:
Interstate Commerce Commission
Date:
1939
Publish Date ISO Format:
1939-01-01T00:00:00Z
Publication Start:
19390101
Publication End:
19391231
Corporate/Agency Author:
Interstate Commerce Commission
Publication month:
13
Publication year:
1939
SuDoc number:
IC 1 blo.5:939
Description:
[1]+38 p. il. oblong large 8°
Notes:
* For Sale by Superintendent of Documents. Paper, 15c.
Availability:
* For Sale by Superintendent of Documents. Paper, 15c.