ble for military or other to guarantee distinct communication for 100 miles. temporary purposes are shown in the accompanying Bids have been submitted to the Navy Department by illustrations. It is also feasible to locate these low- several inventors and companies according to the power stations on… … Badio-telephone and telegraph used with an automobile means of a "buzzer," so that tween Chicago and Milwau- the attention of the operator kee, a distance of some 90 is attracted at once. The or- miles, has been established dinary calling signals of the and maintained, and the De Forest system are…
Feet · Patents · Apparatus · Tube · Device · War department · Scientific American · Great lakes · Front edge · Sea speed · Metal ties · American june · Los angeles · Typewriting machine · White star
Internet Archive · Public domain (published before 1931). Free to use for anything.
