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Person contains "LECOAT DE KERVEGUEN, M"


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Issue: 107, 11/11/29 p. 715, Section: Miscellanies
Heading: Night Telegraph, Para 5
Category: Inventions   Communication   Telegraphy   
Topic: [Invention by Lecoat de Kerveguen, harbour master of Toulon: the night telegraph. His memoir, addressed to the French minister of marine, proposes a box, two sides of which shall have circular holes and rotating discs]
Person: LECOAT DE KERVEGUEN, M.   

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