Testing electric locking; maintenance and operation of a-c and d-c track circuits; lead acid type storage batteries; light signals; testing electric lamps; car retarder systems; insulated rail joints; switch circuit controllers; manual and controlled manual block systems; joint signal facilities; American Railway Signaling, H. S. BALLIET.
Committee V -- Contracts and instructions
Assn Am Railroads -- Proc (Signal Sec)
Association of American Railroads -- Proceedings Signal Section ; 33 , n 2 ; p 444-479
1936
36 pages
Article (Journal)
English
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Committee V -- Contracts and instructions
Engineering Index Backfile | 1935
Committee V -- Contracts and instructions
Engineering Index Backfile | 1938
Committee V -- Contracts and instructions
Engineering Index Backfile | 1939
Committee V -- Contracts and instructions
Engineering Index Backfile | 1938
Committee V -- Contracts and instructions
Engineering Index Backfile | 1937