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United States Utility Patents
5,621,570 - 5,621,579

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NumberTitle
5,621,570 Mirror housing for an exterior rear-view mirror on a vehicle
5,621,571 Integrated retroreflective electronic display
5,621,572 Optical system for a head mounted display using a retro-reflector and method of displaying an image
5,621,573 Microoptic bidirectional module
5,621,574 Objective lens system utilizing axial gradient index (grin) lens elements
5,621,575 Wide angle lens system
5,621,576 Optical head for optical memory disk recording device with elastic support in a direction parallel to a recording surface
5,621,577 External rear-view mirror for commerical vehicles
5,621,578 Method of transmitting digital video and audio signals between bit rate reduction encoded signal recording and reproducing systems
5,621,579 Method for selectively playing back programs recorded on a video tape



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