gallows" sound-powered telephone, which can transmit indistinct, voice-like sounds, but not clear speech. -In his professional career.
The Telephone
18
Alexs first invention was a machine that could take the husk of wheat.
The bell end. ALEXANDER GRAHAM BELL'S INVENTION WAS CALLED THE TELEPHONE.
He was the first person to patent the invention of the telephone>
Sometime in the 1870's.
Alexander Graham Bell (1847-1922), of Scotland, Great Britain is creditedwith the invention of the telephone.Alexander Graham Bell) was a scientist, inventor, engineer and innovator who is credited with inventing the first telephone
Invention of the telephone
Alexander Graham Bell
no
Alexander Graham Bell invented the telephone.
Apple