Series of illustrations of various types and for different purposes with short, general explanatory notes.
Trolley wires for electric railroads in lignite surface mining practice
Fahrleitungen fuer elektrische Bahnen im Braunkohlen-Tagebau
Elektrizitaet im Bergbau ; 5 , n 7
1930
9 pages
19 Figs.
Article (Journal)
German
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Voltage drop in trolley wires and rails of electric railroads
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|Silicon rectifiers for trolley lines and railroads
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