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Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914) Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 449
<u o- N-q&g5SR-«tt) OJ rt +3 ^ bfl (D^n^; 6 the use of twotrolley wires,combinedwith the factthat the per-formance ofthe inductionmotor doesnot give thebest results intractionwork,the practicalapplication ofthis system isconfined to acomparative-ly few specialcases amongthe Europeanelectric… … *h /-. r! -W <U ctf 2 a&S g ° — ^ ^C g~ - ^ a *i w - 3 a £ ►d ™ ££ * -1 SO.CCJ CJi-H»-, 0 3u - ■ (U CD £ bo d oj a<u vh+S ft*i o 3 k. w «-. •» en O- ri g,d cu - I 8 * s d 0 c S § o-fc.S cj >»0 cu > .2 © co CO o OXCD CO c 2o O d vh ^-^o s . <U cu +J <u ^b d s 6 w £ w a c s £ d… Electrical engineering
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