Projection type cathode ray tube with masking means
Projection type image display apparatus
Projection type image display apparatus with circuit for correct
Projection type television set
Projection-type display apparatus utilizing both zero-order and
Projector
Projector system and system for detecting flaw
Projector television tube alignment means and method
Prompter
Proofing images in a print job having at least one image in a pr
Protected television signal distribution system
Protection circuit for a television camera preamplifier
Protection circuit for improper line voltage
Protective apparatus for pick-up tube
Protective casing for optical instruments
Protective cover for flight instrument filter glass
Protocol converting apparatus for videotex system
Providing a payment schedule for utilizing stored images...
Provision and display of video signals
Proximity focused shutter tube and camera