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 507
in the accompanying illustrations. ELECTRO-PLA TING 3,161 Scouring, Swilling and Rinsing Troughs.—These are usually made of wood, lined with lead and divided in the middleby a partition, one part being used for scouring and the otherfor holding clean water for rinsing the articles after they…
Electrical engineering
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