Inverters; Digital door locks; Navigation apparatus for vehicles; Power inverters; Remotely-controlled sub-aquatic video camera containing a TV camera, transmitter, receiver and microphone to record, detect, measure, survey and locate objects underwater; Solar panels for the production of electricity; Tire pressure gauges; Tyre-pressure measurers; Underwater cameras; Vehicle locator and recovery device programmed to use global positioning systems (GPS) and cellular telecommunications; Vehicle...