Data carrier having an optically variable element and...
Data carrier with an optically variable element
Data communication system for hand-held computers
Data communication system for printer and handheld computer
Data communications and illuminated light on the same optical fi
Data communications coupler and lens for tractor/trailer
Data communications system that prevents undesired coupling betw
Data encoded optical pulse generator
Data identifying device and light receiver using the same
Data imprinting apparatus
Data multiplexing node for line array
Data read/write device for holographic WORM and method thereof
Data system for storing holographic media
Data transfer apparatus utilizing infrared rays
Data transfer system
Data transmission control device of radio selection call receive
Data transmission on optical networks
Data transmission system
Data transmitter/receiver
Day and night film