Specifications and classification and grading rules for lumber and timber to be used in construction and maintenance of Way Department of railroads. (See also Bul. Am. Ry. Eng. Assn vol. 21, no. 225, March 1920 pp. 303-362)
Report of committee VII -- On wooden bridges and trestles
Ry. Age
Railway Age ; 68 , n 11c
1920
3 pages
Aufsatz (Zeitschrift)
Englisch
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Report of committee on wooden bridges and trestles
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