A report of a successful experiment in Germany. (2400 w.) (No. 52176 N)
Obtaining gravel ballast in state working
Bul Int Ry Cong
1914
Article (Journal)
English
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Engineering Index Backfile | 1927
|Use of gravel as railway ballast
Engineering Index Backfile | 1929
|Use of gravel as railway ballast
Engineering Index Backfile | 1929
|gravel supply device of travel type of ballast maintenance
European Patent Office | 2021
gravel supply device of travel type of ballast maintenance
European Patent Office | 2021
|