Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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FERNAND LAURENT EDMOND JOSEPH
Original Assignee
FERNAND LAURENT EDMOND JOSEPH
Filing date
Publication date
Application filed by FERNAND LAURENT EDMOND JOSEPHfiledCriticalFERNAND LAURENT EDMOND JOSEPH
Application grantedgrantedCritical
Publication of FR469349ApublicationCriticalpatent/FR469349A/fr
Appareil inscripteur à lame vibrante pour l'enregistrement phonographique des signaux hertziens et des communications téléphoniques (avec ou sans fil)
Einrichtung zur phonographischen Aufnahme und WiedEinrichtung zur phonographischen Aufnahme und Wiedergabe telephonisch übermittelter Gespräche. ergabe telephonisch übermittelter Gespräche.