ical vessel in which turns a shaft provided to which are fixed magnetic rods, set vibrating by the shown the possibility of telephoning and writing simul- with paddles. Such an apparatus takes some 7 horse- taneously on the same wire, without the two apparatus arriving current through the medium of… … message automatically from the crete blocks. THE IMPROVED GRUHN TELAUTOGRAPH.
Apparatus · Device · Motor · Scientific American · Patents · York central · Electric arc · American supplement · Real estate · American supplements · Lead Poisoning · Superimposed track · American july · White ground
Internet Archive · Public domain (published before 1931). Free to use for anything.
