Patent Stories
History of the Flute
The flute is the world's oldest instrument, predating drums by millennia. Djalma Julliot's 1908 U.S. patent refined its key system. Framed prints available.
Learn moreThe flute is the world's oldest instrument, predating drums by millennia. Djalma Julliot's 1908 U.S. patent refined its key system. Framed prints available.
Learn more