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The practical telephone handbook and guide to the telephonic exchange (1906)

Poole, Joseph · New York, Macmillan Co. · leaf 59

An illustration from The practical telephone handbook and guide to the telephonic exchange, 1906, leaf 59
ekept in a cool place, or they will become actually dry, andwill fail to give current. The Delafon Cell.—This is a successful cell made in both awet and dry form. The special feature appears to be anagglomerate mixture which instead of being mixed with somebinding ingredient and then solidified by… … Fig. 20 BA TTERIES 37 electrolyte is obtained by a special preparation having feculaas a basis. Mr W. E. Cooper, in bis work on Primary Batteries, givesthe results of a comparison of tests of a number of differentforms of Leclanche cells, including dry forms, and thefollowing particulars of the…

Telephone

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