Abstract of group of reports relating to track presented at 1947 convention of American Railway Engineering Association, dealing with road bed or formation, ballast, ties and tie plates, steel rails, joints, anchorages, switches and crossings. (See also - n 4776 Aug 3 1947 p 128-30)
American railway developments
Engineer
Engineer ; 184 , n 4777
1947
7 pages
Article (Journal)
English
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