Inventions 1915-1938 - du masque à gaz à la machine à laver*remise pour cause de couverture abme, pour plus d'informations n'hsitez pas nous envoyer un e mail* Between 1916 and 1939 thousands of films and photographs were produced in France, in line with the national policy encouraging scientific and industrial research. These largely unknown images stand as visual witnesses to twenty years of invention and research. Their analog archives trace through the history of innovation, anchored at first in war and