Invention of the telephone

Replica of the telettrofono at Museo Nazionale Scienza e Tecnologia Leonardo da Vinci of Milan, Italy, invented by Antonio Meucci and credited by several sources as the first telephone.
Reis's 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. Notable people included in this were Antonio Meucci, Philipp Reis, Elisha Gray and Alexander Graham Bell.

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