Present status of administration of so-called signal inspection law.
Address
Assn Am Railroads -- Proc (Signal Sec)
Association of American Railroads -- Meeting ; 1939 Inspection
Association of American Railroads -- Signal Section Proceedings ; 36 , n 2 ; p 237-241
1939
5 pages
Conference paper
English
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SLUB | 1974
|Engineering Index Backfile | 1943
|Taylor & Francis Verlag | 2006
|AIAA | 1995
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