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Scientific American, Vol. 42, No. 20 (May 1880) (1880)

leaf 4

An illustration from Scientific American, Vol. 42, No. 20 (May 1880), 1880, leaf 4
nals is represented in the upper part charge of the grand commutator, where the groups A and Each subscriber is provided with a telephone connected with of the cut; the white circles, with the numerals above them, C are connected in the line 6, thus permitting No. 5 to con- the main central offlce… … he desires to be connected with No. 9. The Figs. 1, Z 3.-THE GOWEB TELEPHONE. Fig. 8.-ANNITNCIAT0BS AND SWITCHES. employe then resets the signal of No. 5, and eate with another subscriber, he gives the signal by blowing connects No. 9 with the second bar by means of the plug in verse with 83. As…

Patented · Iron · Improved · Dynamometer · Patents · Scientific American · Feet · Twenty years · Total energy · Low water · Wood working · Heat capacity · Union telegraph · Edison dynamometer · Feet long · Total efficiency

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