Recorder of the status of a traffic control system
Recording ocean bottom device, such as a seismograph
Recording system for vehicle occupant protecting apparatus
Reflection type flow-flashing light
Refrigerator door lock with alarm
Register-gate system
Releasing circuit and checking circuit for a motor vehicle safet
Releasing device for an automatic fixed speed driving system
Reminder for vehicle drivers
Remote control apparatus for a property protection device
Remote control for engine oil level indicator
Remote control sonar beam steerer
Remote control system for traffic signal control system
Remote controlled surveillance train car
Remote cycle alarm system
Remote cycle alarm system
Remote elevator monitoring system
Remote switch-sensing system
Remote temperature change warning system
Remote vehicle control system including common carrier...