On This Day in Telephone History April 5TH 1877 Alexander Graham Bell demonstrated his new device called a Telephone at Music Hall, Providence, RI, using circuit from Boston for demonstration.

On This Day in Telephone History April 5TH 1877

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On This Day in Telephone History April 5TH 1877 Alexander Graham Bell demonstrated his new device called a Telephone at Music Hall, Providence, RI, using circuit from Boston for demonstration.

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