Title: Who Invented The Telephone? The Complete Truth - RankRed
Headings: Who Invented The Telephone? The Complete Truth
Who Invented The Telephone? The Complete Truth
Antonio Meucci
Constructed an early voice communicating device in 1854
Johann Philipp Reis
Built the first ‘make-and-break’ telephone in 1861
Innocenzo Manzetti
Reported to have invented a speaking-telegraph in 1864
Elisha Gray
Designed a telephone using a water microphone in 1876
Alexander Graham Bell
Awarded the first US Patent for the invention of the practical telephone in 1876
Thomas Edison
Invented the carbon microphone to produce a strong telephone signal
Tivadar Puskás
Proposed the telephone switchboard exchange in 1876
Varun Kumar

Content: their lawyers did on their behalf. Some reports say that Bell’s lawyer arrived at the patent office earlier than Gray’s lawyer. He was the 5th entry of that day, while Gray’s lawyer was 39th. Thus, the first patent of the telephone was awarded to Graham Bell. After Bell’s patent was granted, he tested Gray’s liquid transmitter design but only as a proof of concept experiment. He wanted to see whether articulate speech could be electrically transmitted. But since liquid transmitter wasn’t feasible for commercial devices, Bell later focused on developing better electromagnetic telephones. After March 1876, he never used Gray’s transmitter design in commercial products or public demonstrations. Source: The Telephone Patent Conspiracy of 1876
Thomas Edison
Invented the carbon microphone to produce a strong telephone signal
In 1876, Thomas Edison developed a carbon microphone to improve the transmitters developed by Graham Bell and Philipp Reis.