Copper covered steel guy and messenger strand; bronze guy and messenger strand; fibrous covered non-metallic sheath for railway signal cable.
Committee IX -- Overhead and underground lines
Assn Am Railroads -- Proc (Signal Sec)
Association of American Railroads -- Meeting ; 1937 Specifications
1937
8 pages
Aufsatz (Konferenz)
Englisch
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Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1936
Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1944
Committee IX -- Overhead and underground lines
Engineering Index Backfile | 1930
Overhead and underground lines
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Report of committee IX -- Overhead and underground lines
Engineering Index Backfile | 1943