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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ESPEL ESPANOLA S A
Original Assignee
ESPEL ESPANOLA S A
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Application filed by ESPEL ESPANOLA S AfiledCriticalESPEL ESPANOLA S A
Priority to ES0073552UpriorityCriticalpatent/ES73552U/es
Publication of ES73552UpublicationCriticalpatent/ES73552U/es
Devices Affording Protection Of Roads Or Walls For Sound Insulation
(AREA)
Abstract
Caja de resonancia para sonido estereofónico que se caracteriza por comprender un juego de puertas reflectoras del sonido y, en combinación, una línea de amplificación; frecuencias altas y medias del canal (I), frecuencias altas y medias del canal (D) y un altavoz situado entre los bajos del canal (I) y del canal (D).
ES0073552U1959-05-091959-05-09Caja de resonancia para sonido estereofónico
PendingES73552U
(es)