1905
Mr. F. Dogilbert invented a machine in Paris in 1905. Two patents were taken out in 1906 and 1907. In 1910, the Dogilbert was patented in the United States. His plans later took him to Brussles in 1908. The process was called electrogravure. It was used to create a copy that could be reproduced by photo-mechanical process. The process of printing music with this method follows: