Aerial, measuring, detecting, controlling devices, namely, aerials, temperature sensors, pressure sensors, oil level sensors, liquid level sensors, acceleration sensors ; pressure gauges; fuel consumption meters as in fuel gauges, barometers, electromagnetic solenoid valves, fuel regulating and distribution apparatus, namely, air-fuel ratio controllers for internal combustion engines, fuel gauges, fuel cells, electronics control devices for drive units and power units of aircrafts, instrument...