Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B23/00—Devices for changing pictures in viewing apparatus or projectors
G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which pictures are removed from, and returned to, magazines; Magazines therefor
G03B23/04—Devices for changing pictures in viewing apparatus or projectors in which pictures are removed from, and returned to, magazines; Magazines therefor with linear movement
Vorrichtung zum Vorfuehren von Lichtreklame an Wolken-, Rauch- u. dgl. Waenden mittels elektrischer Gluehlampe, deren Gluehfaeden zu Bildern oder Schriften geformt sind