Analysis shows light to be thing purchased in car lighting; old lamps should be discarded; lamps and power for lighting cars cost Interborough Rapid Transit Co. $125,964 per year.
Light, not lamps, determines economy of car lighting
Elec. Ry. Jl
Electric Railway Journal ; 64 , n 3
1924
3 pages
2 Figs.
Article (Journal)
English
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