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Individual
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Individual
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Priority to ES0004001UpriorityCriticalpatent/ES4001Y/en
Publication of ES4001UpublicationCriticalpatent/ES4001U/en
Application grantedgrantedCritical
Publication of ES4001YpublicationCriticalpatent/ES4001Y/en
A musical device able to be placed behind the doors and to produce sounds in the opening and closing movements of these, characterized by being essentially constituted by a resonance box made of wood or any other suitable material and adopting various decorative forms, on which harmonized metal strings are established on which they come to lean slightly while the box is upright, lead balls hanging from threads attached to the upper part of the box, the oscillation of whose balls, caused by the movements of the door , produces the shock of them against the metal cords. (Machine-translation by Google Translate, not legally binding)
ES0004001U1935-08-021935-08-02
Musical device applicable to doors.
ExpiredES4001Y
(en)