Bar code verification and printing system
Battery conservation system for color television camera
Beam current control for television camera
Beam index color cathode ray tube
Beam index color cathode ray tube
Beam index color cathode ray tube
Beam index color cathode ray tube with color-identifying pattern
Beam index color display system
Beam index color display system
Beam index color television receiver
Beam index color television receiver
Beam index color television receiver apparatus
Beam index color television receiver apparatus
Beam index color television receiver apparatus
Beam index display tube and display system including the beam in
Beam index system having two distinct levels of index video sign
Beam index system with switchable memories
Beam index type color television receiver
Beam landing indicator for color cathode ray tube
Beam scanning device producing a horizontally uniform electron b