9 Scientific apparatus and instruments, for laboratory use, namely, global positioning systems, and automatic altitude indicators, sensors for the determination of altitude and position, and frequency meters; apparatus and instruments for light current engineering, in particular for telecommunication purposes, for high-frequency engineering and regulating technology, namely, radar apparatus for aviation, electronic navigation instruments, integrated circuit cards, high frequency switches; apparatus and instruments for heavy current engineering, in particular for regulation and control, namely, electrical switches, transformers, voltage regulators, electrical controllers, electrical controlling devices, electricity conduits, filters for radio interference suppression; nautical, aeronautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, life-saving and teaching apparatus and instruments, namely, GPS navigation devices, avionic sensor systems, namely, navigation systems, transmitters of electronic signals, antennae; apparatus for recording, transmission and reproduction of sound or images; equipment for data processing and computers; computer programs stored on machine readable media for operating equipment, data processing, and controlling and operating computers in the field of navigation, flight calibration, and aviation