Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 232
69. ELECTRIC LIGHTING. 213 jector search-light, fitted upon a platform large enough toaccommodate a man to manipulate the Hght, the platformbeing connected to the vessel as near to the waters edge aspossible, and an automatic electric lamp suspended uponthe bridge, capable of illuminating an area…
Electric industries · Electricity
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