USA HISTORY

Detailed explanation-1: -Alexander Graham Bell is credited with being the inventor of the telephone since his patent and demonstrations for an apparatus designed for “transmitting vocal or other sounds telegraphically… causing electrical undulations” were successful. First Bell Telephone, June 1875.

Detailed explanation-2: -Both Alexander Graham Bell and Elisha Gray submitted independent patent applications concerning telephones to the patent office in Washington on February 14, 1876.

Detailed explanation-3: -On March 7, 1876, 29-year-old Alexander Graham Bell receives a patent for his revolutionary new invention: the telephone.

Detailed explanation-4: -Hearing the sound, Bell believed that he could solve the problem of sending a human voice over a wire. He figured out how to transmit a simple current first, and received a patent for that invention on March 7, 1876.

Detailed explanation-5: -Timeline. Alexander Graham Bell received patent 174, 465 from the U.S. Patent Office for ‘the method of, and apparatus for, transmitting vocal or other sounds telegraphically, by causing electrical undulations, similar in form to the vibrations of air accompanying the said vocal or other sound.