<P> Ticker tape stock price telegraphs were invented in 1867 by Edward A. Calahan , an employee of the American Telegraph Company . </P>
<P> Ticker tape stock price telegraphs were invented in 1867 by Edward A. Calahan , an employee of the American Telegraph Company . </P>
who inverted the first stick ticker in 1867
who inverted the first stick ticker in 1867
Edward A. Calahan , an employee of the American Telegraph Company
Edward A. Calahan , an employee of the American Telegraph Company