Operation of railroads : maintenance of signals /
| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
The Dept. : U.S. Govt. Print. Off,
1945.
|
| Series: | War Department technical manual ;
TM 55-277. |
| Subjects: |
| Item Description: | "TM 55-277"--cover. "14 June 1945"--inside cover. Includes index to rules. |
|---|---|
| Physical Description: | ii, 45 pages ; 17 cm. |