Le Syst me de T l graphes et de S maphores l'Usage de la Marine est un manuel pratique pour les t l graphistes et les op rateurs de s maphores de la marine fran aise du XIXe si cle. Le livre d crit les diff rentes m thodes de communication distance, les r gles de transmission, et les codes de signaux utilis s en France et dans les autres pays europ ens. Ce livre est une source indispensable pour les historiens de la communication et de la technologie.
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