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Scientific American, Vol. 36, No. 13 (March 1877) (1877)
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. It will be evident endeavoring to over- that it is possible to come; and at the send by the tele- first favorable op- phone multiple tele- portunity, a practi- graphic messages or cal test of the pow- multiple verbal com- ers of the instru- munications simul- ment over one of taneously. In Fig.… … © 1877 SCIENTIFIC AMERICAN, INC.Patents · Improved · Iron · Liquor · Consists · Scientific American · Core · Undulatory theory · Silver plating · Fat liquor · Original patent · Carbonic acid · Find directions · American supplement · Reissued patent · Large number
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