Arrangement for the viewing projection of framed slides
Arrangement for, and method of, enhancing image projection...
Array for projecting a polyciiromatic image on a projection...
Array of optical projection devices
Assembling mechanism
Assembly for projecting an image onto a projection surface
Astigmatic lenticular projector system
Asymmetric aperture diaphragm placing structure for...
Asymmetrical tunnel for spatially integrating light
Attachable/detachable silencer and projection type projector...
Audience scanning laser display projector and associated...
Audio visual system having recorded moving light pointer and met
Audio-video recording of overhead projector based presentations
Audio-visual cartridge
Audio-visual cartridge and combined audio player and visual view
Audio-visual cartridge and player
Audio-visual device
Audio-visual show toy
Audio-visual slide projection system
Audio-visual system including audio-visual slides