G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F19/00—Advertising or display means not otherwise provided for
G09F19/12—Advertising or display means not otherwise provided for using special optical effects
G09F19/14—Advertising or display means not otherwise provided for using special optical effects displaying different signs depending upon the view-point of the observer
Support publicitaire destine a equiper toutes surfaces vitrees sans les occulter, notamment celles des vehicules automobiles et particulierement celles des taxis
Visionneuse pliable en carton, permettant d'observer des anaglyphes ou des stereogrammes, images doubles donnant la sensation de relief, ces images etant reproduites sur un support opaque