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Scientific American, Vol. 40, No. 25 (June 1879) (1879)

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An illustration from Scientific American, Vol. 40, No. 25 (June 1879), 1879, leaf 0
rding vided, doing away with expensive electrical conductors, which have baffled the ingenuity of inventors so far, and to the opinion of several eminent experts, it can be produced and dispensing with lamps or regulators at points where which must effectually block the progress of subdivision in… … MOLERA & CEBRIAN'S SYSTEM OF ELECTRIC LIGHTING. © 1879 SCIENTIFIC AMERICAN, INC.

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