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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MARCONI ESPANOLA SA
Original Assignee
MARCONI ESPANOLA SA
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Filing date
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Application filed by MARCONI ESPANOLA SAfiledCriticalMARCONI ESPANOLA SA
Priority to ES0223030ApriorityCriticalpatent/ES223030A3/en
Publication of ES223030A3publicationCriticalpatent/ES223030A3/en
Diaphragms For Electromechanical Transducers
(AREA)
Abstract
Stereophonic sound reproduction system, characterized because it is made with several speakers with different response characteristics and combined in a variable way in one or several boxes, and/or diaphragms or screens. (Machine-translation by Google Translate, not legally binding)
ES0223030A1955-07-161955-07-16Stereo sound reproduction system (Machine-translation by Google Translate, not legally binding)
ExpiredES223030A3
(en)
A method of recording sound oscillations on a tape and reducing the sound so registered. (Machine-translation by Google Translate, not legally binding)
Special horn to amplify the sounds adaptable to the radio, cinema, sound, public phonographic auditions and in general to all applications derived from the radio or radiophonograph. (Machine-translation by Google Translate, not legally binding)