Race recording and display system
Racing control system
Racing control system
Racing vehicle position indication system and method
Radio and television alarm system
Radio central station alarm system
Radio communication system
Radio frequency detection circuitry having noise discrimination
Radio frequency identification (RFID) pin detection system
Radio pager having optional annunciating means
Radio signal receiving apparatus with a security circuitry
Radio synchronized warning light system
Random offset alarm clock
Range monitoring apparatus
Raster display apparatus
Raster display position detection
Raster scan type CRT display system having an image rolling func
Raster scanned display system
Raster-scan display apparatus for computer-generated images
Rate-of-change combustion and contamination detection device