Specification for pole line hardware; galvanizing for iron or steel; friction tape for railroad use; railroad specifications for electric light, power supply and trolley lines crossing railways; double-braided, weatherproof 30% conductivity copper-covered steel line wire; progress report on steel and zinc-taped cables; etc. (Signal Sec)
Committee IX -- Overhead and underground lines
Am Ry Assn -- Proc
American Railway Association -- Proceedings ; 30 , n 1
1933
13 pages
Aufsatz (Zeitschrift)
Englisch
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Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1936
Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1934
Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1944
Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1937
Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1941