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Individual
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Individual
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Priority to ES0200000ApriorityCriticalpatent/ES200000A1/en
Publication of ES200000A1publicationCriticalpatent/ES200000A1/en
Electromagnetic control for the operation of horns, characterized by a coil or solenoid with core, in whose center and longitudinally there is an axis, at the end of which an electromagnetic regulating disc is installed; this set goes in an enclosing or protective box, provided with a coupling nozzle; at the ends there are two terminals and through positive holes the positive and negative electrical connections go out. (Machine-translation by Google Translate, not legally binding)
ES0200000A1951-10-131951-10-13Electromagnetic control for the operation of speakers (Machine-translation by Google Translate, not legally binding)
ExpiredES200000A1
(en)