Brief illustrated descriptions of a number of mechanical and electrical appliances on cars, operated by the guard on the platform, to announce stations. (2000 w.)
Station indicators for subway, elevated and other railway systems
Elec Wld Engr
1903
Aufsatz (Zeitschrift)
Englisch
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Hamburg subway and elevated railway
Engineering Index Backfile | 1913
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Engineering Index Backfile | 1929
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