Charles Ragon de Bange (1833–1914), often simply called de Bange, was a Polytechnician and a French artillery colonel of the 19th century. He invented the first effective obturator system for breech-loading artillery. Its basic principle of functioning is still widely in use to this day. He also designed a system of field guns of various calibers which served the French Army well into World War I: the Système de Bange.