Common Contracts
1 similar null contracts
Agreement with '/#stern Union Telegraph Co.January 28th, 2014
The said Edison agrees to invent, construct and place in practical operation upon the lines of the said Company, a sys tem or method for telegraphing by vibrations of the kind re ferred to and more particularly described under the head of "The Acoustic Telegraph" in a work called the "Wonders of Electricity," published by Charles Scribner & Co. in I872, whereby not less than five or more distinct and seperate mes sages can be transmitted on a single wire in opposite direc tions at one and the same time, without interference with each other, said system to be hereafter called the Acoustic Tele
