TRANS-LUX

REAR PROJECTIONS SCREENS; OPTICAL PROJECTION EQUIPMENT-NAMELY, STEREOPTICONS, STEREOPTICON SLIDES, LENSES, LENS HOLDERS AND LENS MOUNTS MOVING PICTURE FILM, SOUND FILM, COMBINED PICTURE AND SOUND FILM; MOVING PICTURE PROJECTION APPARATUS AND PARTS THEREOF-NAMELY, FILM TRAP ASSEMBLIES, FILM FEEDING AND/OR GUIDING DEVICES, FILM MAGAZINES, MISCELLANEOUS EQUIPMENT FOR PROJECTION APPARATUS; PROJECTOR CABINETS; SCREEN FRAMES; SCREEN CABINETS; SOUND REPRODUCING EQUIPMENT; AMPLIFIERS; LOUD SPEAKER UNITS; SYNCHRONOUS SOUND-PICTURE REPRODUCING EQUIPMENT