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"The Story Is Cruel with the Pioneers!" Long Before Graham Bell, This Unknown Albigeois Was a Pioneer of the Phone

Summary by ladepeche.fr
At the beginning of the 19th century, François Sudre invented a form of telephony based on music. His invention was tested, validated and tested by the army before disappearing, swept away by the invention of the...

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At the beginning of the 19th century, François Sudre invented a form of telephony based on music. His invention was tested, validated and tested by the army before disappearing, swept away by the invention of the...

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ladepeche.fr broke the news in on Saturday, January 3, 2026.
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