R/C model speed controller
R/C speed controller with synchronous flyback circuit
Race car system
Race car system
Radiation path axis directing system
Radio controlled speed controller with audible feedback signal
Radio frequency remote control for trolling motors
Radio frequency remote control for trolling motors
Radio-linked, bi-directional control system for model...
Railroad crossing gate control system including a separate maint
Railroad crossing gate mechanism control system
Railway switch machine motor control apparatus
Rain condition dependent wiper control system for an automotive
Rain detection system and method of controlling the same
Rain detector
Rain responsive windshield wiper control
Rain sensing system and method having automatically registered a
Rain sensor
Rain sensor car electric window closure control
Rain sensor in an automatic wiper drive control system for an au