0
It took 6 year to invent the working version of the telephone according to Professors from the world
What else can I help you with?
How long did the first camera take to make?
forever
How long can you make a string telephone in optimum conditions?
How long is a piece of string?
Who was the First person to make telephone?
charles babbage
How long did it take to make the first telaphone?
The first practical telephone was developed by Alexander Graham Bell in 1876. The invention process spanned several years of experimentation and research, with Bell filing his patent for the telephone on February 14, 1876. While the exact timeline can vary depending on how one defines "making" the telephone, it involved years of prior work in acoustics and electrical engineering leading up to that momentous invention.
How many days did it take to make the telephone?
257 days
When did Alexander Graham Bell make his first telephone?
1876
Who was the first one to make a telephone?
Alexander Graham Bell.
How long does it take a person to make a judgment?
Usually not long, mostly you just have to get their attention first. (:
Did Alexander ghram bell make the first telephone?
Yes Alexander Graham Bell invented the telephone in 1876.
From what North American city did Alexander Graham Bell make the first long distance telephone call?
The first long distance telephone call was made on 10 August 1876 by Bell from the family homestead in Brantford, Ontario, to his assistant located in Paris, Ontario, some 10 miles (16 km) distant.
How long did the wright bros take to make first plane?
4 years
How long did it take Sony to make the first Cd player?
about half a year
