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Priority to ES1979241096UpriorityCriticalpatent/ES241096Y/en
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Publication of ES241096YpublicationCriticalpatent/ES241096Y/en
Resonance box, characterized in that in one of its bases it has two holes through which flexible conduits run, while, in the other open base, it bears hermetically adhered a flexible membrane provided in turn, in the center, of a magnet located so that it can be attracted, together with the membrane, to the core of a coil properly arranged, so that, when receiving said coil, from an electronic circuit, preset electric impulses at will, a magnetic field is created of the same polarity as that created in the membrane by the magnet, producing in that membrane a rejection in response to each impulse and giving rise to each attraction or rejection of a sound that will be guided by the flexible conduits to the desired point. (Machine-translation by Google Translate, not legally binding)