history of telephone

history of telephone

Feb 22, 1860

<a href='http://http://www.schoelles.com/Telephone/teltimeline.html philip Reis made the first deviceto transport the spoken word.

history of the telephone

Feb 22, 1861

http://www.ideafinder.com/history/inventions/telephone.html Philip Reis changes sound to electricity then back to sound

history of telephone

Feb 22, 1874

http://www.schoelles.com/Telephone/teltimeline.html Alexander gram bell discovers the concept of the telephone.

history of telephone

Feb 22, 1876

http://www.schoelles.com/Telephone/teltimeline.html Bell and watson transmitted the first complete sentence.

history of telephone

Mar 22, 1876

http://www.schoelles.com/Telephone/teltimeline.html Alexander gram bell patened the telephone

history of telephone

Feb 22, 1878

http://www.schoelles.com/Telephone/teltimeline.html Alexander gram bell made the first online telephone excahange.

history of telephone

Feb 22, 1885

http://www.schoelles.com/Telephone/teltimeline.html Thomas Edison discovered the flow of electrons in a phone

history of telephone

Feb 22, 1894

http://www.schoelles.com/Telephone/teltimeline.html Oliver lodge demonstrated wireless communication over 150 feet.

history of telephone

Feb 22, 1911

http://www.schoelles.com/Telephone/teltimeline.html AT&T was the beginning of MA Bell that was the most popular phone service.

history of telephone

Feb 22, 1918

http://www.schoelles.com/Telephone/teltimeline.html the bell system introduces the first touch phone.

history of telephone

Feb 22, 1918

http://www.schoelles.com/Telephone/teltimeline.html Edwin Armstrong invents the super heterodyne reciver circuit.

history of telephone

Feb 22, 2013

Bill gates will make a holographic phone.