guidon (plural guidons) 1  A small pennant or banner carried by infantry soldiers to direct troop movement. 2  A soldier assigned to carry such a banner.
Within a year or two, Western Union and other telegraph companies were using diplex telegraphs on their busiest lines in major cities. In 1874, Thomas Edison invented the first quadruplex telegraph, which was capable of sending two messages simultaneously in each direction.ears later, quadruplex telegraphs were displaced by two new inventions, multiplex telegraphy capable of eight or more simultaneous transmissions, and the use of teletype machines, which did not require their operators to know Morse Code.
Thomas Edison was the inventor of the phonograph. The US inventor of the telegraph was Samuel Morse. Also, Morse didn't invent the telegraph, he just improved on it.His telegraph, built in 1836, allowed the use of small currents across long lines of ordinary wire.Many historians credit Morse's assistant Alfred Vail with designing crucial components of his system.he US inventor of the telegraph was Samuel Morse. Also, Morse didn't invent the telegraph, he just improved on it. His telegraph, built in 1836, allowed the use of small currents across long lines of ordinary wire.