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Книги Книги 21 - 21 з 21 у When current for light and power is taken from primary or secondary batteries, the....
" When current for light and power is taken from primary or secondary batteries, the same general regulations must be observed as apply to similar apparatus fed from dynamo generators developing the same difference of potential. "
Electric Lighting Specifications for the Use of Engineers and Architects - Сторінка 138
автори: Earle Abbott Merrill - 1892 - 176 стор.
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Encyclopedia of Engineering: A Treatise on Boilers, Steam Engines ..., Том 3

Calvin Franklin Swingle - 1906
...a fireproof base, and in full view and reach of the attendant. 10. Storage or Primary Batteries. n. When current for light and power is taken from primary...same general regulations must be observed as apply to similar apparatus fed from dynamo generators developing the same difference of potential. b. Storage...
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