Illustrated description of a plant located 57 miles from Richmond, Va. (1600 w.) (No. 31616)
A gravel washing plant for railway ballast; structural details and methods and cost of operation
Engng Con
1912
Aufsatz (Zeitschrift)
Englisch
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Use of gravel as railway ballast
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Engineering Index Backfile | 1930
|The use of gravel as railroad ballast
Engineering Index Backfile | 1929
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