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Scientific American, Vol. 76, No. 1 (January 1897) (1897)

leaf 5

An illustration from Scientific American, Vol. 76, No. 1 (January 1897), 1897, leaf 5
^tunixiu %mtxum. January 2, 1897.] … movement of the operator's hand; it also breaks offices at New York City, Boston, and Rochester, N. Y. This company were among the first to adapt elec- contact with a pronounced snap. Troubles with the burning of switch contacts have in this apparatus been tricity to elevators, and they make direct…

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