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Scientific American, Vol. 61, No. 5 (1889) (1889)
leaf 3
Srientific American. [AuGuUST 3, 1889. … tant points. This application of the telemeter will be rear, Fig. 9.-TELE-THERMOMETER readily understood from the illustrations. © When a message —A MINE. It is obvious that there are various other uses to or urgent dis- they will prove of great value in connection with often be utilized. His speed…Internet Archive · Public domain (published before 1931). Free to use for anything.
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