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PORTELLA BERTRAN TOMAS
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PORTELLA BERTRAN TOMAS
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Publication date
Application filed by PORTELLA BERTRAN TOMASfiledCriticalPORTELLA BERTRAN TOMAS
Priority to ES0061346UpriorityCriticalpatent/ES61346Y/en
Publication of ES61346UpublicationCriticalpatent/ES61346U/en
Application grantedgrantedCritical
Publication of ES61346YpublicationCriticalpatent/ES61346Y/en
Control apparatus for telephone conferences, perfected, characterized by consisting of a box whose profile is flattened, the upper part of the head being somewhat higher than the lower one, determining a smoothly inclined plane on the upper surface of the apparatus; having the upper base rounded, presenting a circular window protected by a transparent medium. (Machine-translation by Google Translate, not legally binding)
ES0061346U1957-08-131957-08-13
Control device for conference calls, perfected
ExpiredES61346Y
(en)
An improvement in a tocadiscos apparatus with sound arm control sound derived from the impulsion (Machine-translation by Google Translate, not legally binding)