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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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES0051828UpriorityCriticalpatent/ES51828Y/es
Publication of ES51828UpublicationCriticalpatent/ES51828U/es
Application grantedgrantedCritical
Publication of ES51828YpublicationCriticalpatent/ES51828Y/es
Aparato de comunicación acústica, caracterizado por constituir una caja auricular con marco impermeable al agua y ajustada a la cabeza y construido de tal forma que existe un punto permeable al ruido, por ejemplo en la parte trasera.
ES0051828U1955-07-151955-07-15Aparato de comunicación acústica
ExpiredES51828Y
(es)