Gaumont, chronophotographe demeny

Film camera and projector for 35 mm films with Edison perforation. In 1896, George Demeny sold the patents for his Biographe camera and the Bioscope projector, which he had tried to market without much success, to Leon Gaumont. Gaumont then proposed to Demeny to build a new device that could perform the functions of camera and projector and with the intermittent drag system of the film using the e…