Polarization preserving front projection screen
Polarizing reflection and transmission, three dimensional...
Polymeric rear projection screens
Pop up prism lens assembly
Portable audio-visual reproduction apparatus
Portable camera and instrument support and positioning system
Portable combined phonograph and moving picture machine
Portable image capture and manipulation device with...
Portable image storage device with integrated projector
Portable laser projector and enclosure
Portable light projector unit
Portable microfiche projector
Portable microfiche reader with foldup lens and mirror assembly
Portable movie screen
Portable overhead projecting apparatus
Portable overhead projector and carrying case
Portable picture screens
Portable picture-screen standard with keystone eliminator
Portable projection screen
Portable projection screen