首页>
外国专利>
A device called 'melógrafo - jayrdarola' adaptable to the soundboard of piano with him, to stop at the speed that is executedThe Printing of any Musical Composition in the piano is executed.
A device called 'melógrafo - jayrdarola' adaptable to the soundboard of piano with him, to stop at the speed that is executedThe Printing of any Musical Composition in the piano is executed.
