RADIO COMMUNICATIONS, MOBILE COMMUNICATIONS, BROADCAST TECHNIQUE, PERSONAL COMMUNICATIONS, RADAR TECHNIQUE (RADIO COMMUNICATIONS)
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BTTELECOMMUNICATIONS (ELECTRICAL), TELEGRAPHY, TELEPHONY, RADIOCOMMUNICATIONS, TELEVISION, VIDEO ENGINEERING, TELECONTROL
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UDC621.396
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Descriptor GERFUNKTECHNIK, MOBILKOMMUNIKATION, RUNDFUNKTECHNIK, PERSONAL-NACHRICHTENTECHNIK, RADARTECHNIK (FUNKTECHNIK)
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Descriptor ENGRADIO COMMUNICATIONS, MOBILE COMMUNICATIONS, BROADCAST TECHNIQUE, PERSONAL COMMUNICATIONS, RADAR TECHNIQUE (RADIO COMMUNICATIONS)
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Descriptor FRERADIOTECHNIQUE, TÉLÉCOMMUNICATIONS MOBILES, TECHNIQUE DE RADIODIFFUSION, TÉLÉCOMMUNICATIONS PERSONNELLES, TECHNIQUE DU RADAR (RADIOTECHNIQUE)
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NTSPECIAL APPLICATIONS OF RADIO ENGINEERING (LIKE - VEHICLE COMMUNICATIONS, RADAR ENGINEERING, RADIO METERING METHOD)
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NTRADIOCOMMUNICATIONS AND AMATEUR RADIO APPARATUS, TRANSMITTERS, CIRCUITS, RADIO RECEIVERS, AERIAL SYSTEMS (RADIO ENGINEERING)
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NTRADIO ENGINEERING (ELECTRICAL ENGINEERING)
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NTMULTIPLE TRANSMISSION + DIRECTIONAL TRANSMISSION (RADIO ENGINEERING)
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NTPERSONAL COMMUNICATIONS + PERSONAL COMMUNICATION SYSTEMS, PCS (RADIO COMMUNICATIONS)
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NTBROADCASTING ENGINEERING + BROADCAST TRANSMISSION (RADIO ENGINEERING)