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Application filed by Dario BandellifiledCriticalDario Bandelli
Priority to IT8883480ApriorityCriticalpatent/IT1225977B/en
Publication of IT8883480A0publicationCriticalpatent/IT8883480A0/en
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Publication of IT1225977BpublicationCriticalpatent/IT1225977B/en
SYSTEM, FOR MUSICAL INSTRUMENTS AND SIMILAR, ABLE TO INTERACT WITH THE USER, INFORMING HIM, THROUGH LIGHTS, THE CORRECT PROCEDURE FOR PERFORMING A SONG.