Charles Bourseul (28 April 1829 – 23 November 1912) was a pioneer in development of the "make and break" telephone about 20 years before Bell made a practical telephone. == Life == Bourseul was born in Brussels, Belgium, and grew up in Douai, France.
Charles Bourseul (28 April 1829 – 23 November 1912) was a pioneer in development of the "make and break" telephone about 20 years before Bell made a practical telephone. == Life == Bourseul was born in Brussels, Belgium, and grew up in Douai, France.
Source: Wikipedia "Charles Bourseul" · CC BY-SA 4.0
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