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CAPACCINI DI VIRGILIO DANTE
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CAPACCINI DI VIRGILIO DANTE
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Application filed by CAPACCINI DI VIRGILIO DANTEfiledCriticalCAPACCINI DI VIRGILIO DANTE
Priority to ES0020260UpriorityCriticalpatent/ES20260U/es
Publication of ES20260UpublicationCriticalpatent/ES20260U/es
Dispositivo acústico supletorio para audición telefónica, que consiste en una caja resonante que se acopla, sostenida mediante unos muelles apropiados, a la tapa del auricular telefónico, de cuya caja parte un tubo flexible que termina en un segundo auricular, formado, al igual que aquella, por una pieza plana con una cámara interior, estando formada la caja resonante de tal modo que permita la audición directa a su través, así como la transmisión de las ondas acústicas, mediante el tubo flexible, al auricular supletorio.
ES0020260U1949-06-081949-06-08Dispositivo acústico supletorio para audición telefónica
PendingES20260U
(es)