DR. PUPIN'S IMPROVEMENTS IN LONG-DISTANCE TELEPHONY. BY HERBERT T. WADE. J. 1T Fig.8 r.s.7 PUPIN'S INVESTIGATION OF GABLE TELEPHONY. FIG. 1. instruments at either end. Pig. 9EXPERIMENTAL CABLE WITH INDUCTANCE COILS., scientific american, 1900-06-02
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DR, PUPIN'S IMPROVEMENTS, LONG-DISTANCE TELEPHONY, HERBERT T, WADE, J, 1T Fig.8 r..7 PUPIN'S INVESTIGATION, GABLE TELEPHONY, FIG, 1, instruments, Pig, 9EXPERIMENTAL CABLE, INDUCTANCE COILS, scientific american, 1900-06-02, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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