Who invented television
Alexander graham bell telephone invention.
Invention of the telephone
Technical and legal issues surrounding the development of the modern telephone
For broader coverage of this topic, see History of the telephone.
The invention of the telephone was the culmination of work done by more than one individual, and led to an array of lawsuits relating to the patent claims of several individuals and numerous companies.
Types of telephone
Notable people included in this were Antonio Meucci, Philipp Reis, Elisha Gray and Alexander Graham Bell.
Early development
The concept of the telephone dates back to the string telephone or lover's telephone that has been known for centuries, comprising two diaphragms connected by a taut string or wire.
Sound waves are carried as mechanical vibrations along the string or wire from one diaphragm to the other. The classic example is the tin can telephone, a children's toy made by connecting the two ends of a string to the bottoms of two metal cans, paper cups or similar items.
The essential idea of this toy
