9 Scientific, surveying, photographic, optical, weighing, measurement, signal and control apparatuses and instruments, devices for recording, transmitting and playing data, sounds and images, communication facilities, in particular transmitter, transceiver, antenna, modems, magnetic recording media, calculators, data processors, computers, addition devices for data processing systems, in particular data reading and storage devices, printers, monitors, scanner, data carriers in particular floppy disks, CD-ROM's with or without stored software, algorithms or data sets, parts of it and out of it combined facilities and systems, teaching material, software, videotapes