首页>
外国专利>
automatic machine for the simultaneous riproduzzione more notes with frequency intervals in music set on and provided by reading tables containing all the harmonies for each note.according to the agreement, and the type of agreement;
automatic machine for the simultaneous riproduzzione more notes with frequency intervals in music set on and provided by reading tables containing all the harmonies for each note.according to the agreement, and the type of agreement;