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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Legrain Industrial SA
Original Assignee
Legrain Industrial SA
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Filing date
Publication date
Application filed by Legrain Industrial SAfiledCriticalLegrain Industrial SA
Priority to ES0232010ApriorityCriticalpatent/ES232010A3/en
Publication of ES232010A3publicationCriticalpatent/ES232010A3/en
Improvements in the resonant acoustic screens, according to which said screens are constituted starting from a box of rectangular section, both horizontal and vertical, completely closed except the front face that has two openings: one greater for the coupling of the loudspeaker of the system, opening that happens to be multiple, if there are several speakers, and another opening of specially designed shape, located at the same height as the speaker or speakers and at the other end of the front face. (Machine-translation by Google Translate, not legally binding)
ES0232010A1956-11-131956-11-13Perfections on the resonant acoustic screens (Machine-translation by Google Translate, not legally binding)
ExpiredES232010A3
(en)