"Le Mirographe" invented by REULOS-GOUDEAU & Co appeared in 1900. It was the first apparatus designed for amateur cinematography, being described as such at the time. One feature of the camera is that the operator could also use the enclosed mechanism for projection, by adding a standard lantern and fitting the projection lens. The mechanism is remarkable for is simplicity and ingenuity, using the principle of an angled "snail" wheel to transport the 20mm film.
See the article by G. Vié in the "Bulletin du Club Niépce Lumière" N°109 P14 from June 2002.Mirographe_Pub_1901.pdf