71590404
Jan 16, 1950
Aug 15, 1950
STEREOSCOPES AND TRANSPARENCIES FOR USE IN CONNECTION THEREWITH, DISCS CARRYING A PLURALITY OF STEREOSCOPIC PAIRS OF TRANSPARENCIES, STEREOSCOPIC PROJECTORS, PROJECTORS FOR TWO-DIMENSIONAL VIEWS, STEREOSCOPIC CAMERAS, AND PARTS OF THE FOREGOING APPARATUSES
Fancy Goods