Electronic sound detecting unit for locating missing articles
Electronic surveillance system employing the doppler effect
Electronic surveillance using self-powered article attached...
Electronic swimmer monitoring system
Electronic system and method for monitoring abusers for...
Electronic systems incorporated into textile threads or fibres
Electronic tamper evident seal
Electronic theft detection apparatus
Electronic theft detection system for monitoring wide...
Electronic time-temperature indicator and logger
Electronic timing circuit for an alarm signal
Electronic toilet seat signal box
Electronic toll collection system for toll road
Electronic traffic monitor
Electronic traffic signal control system
Electronic two-directional control apparatus
Electronic vernier
Electronic warning system
Electronic well tools and multi-channel recorder
Electrostatically charged cable transducer