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Scientific American, Vol. 83, No. 24 (December 1900) (1900)

leaf 3

An illustration from Scientific American, Vol. 83, No. 24 (December 1900), 1900, leaf 3
aratus fail in transmission or recording. third system. The number on the receiving instrument after register- The Stroud telephone meter, which we illustrate, is ing, added to the previous total, should tally with the made by the National Measured Service Company, of Chicago, and is designed to… … SUBSCBIBEB'S TELEPHONE WITH ZIETEB ATTACHED, number forward and rotates the camwbeel, h, to AN ACETYLENE HOVSE-LAUF.

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