A spring-supported contact rail, made movable to break ice. (2200 w.) (81104)
Wording's automatic train-stop
Ry Age Gaz
1917
Ills.
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1932
Engineering Index Backfile | 1949
Harrington automatic train stop
Engineering Index Backfile | 1911