HELICAL AERIALS + HELICAL ANTENNAS (RADIO ENGINEERING)
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BTDIRECTIONAL AERIALS + DIRECTIONAL ANTENNAS (RADIO ENGINEERING)
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UDC621.396.677.45
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Descriptor GERWENDELANTENNEN (FUNKTECHNIK)
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Descriptor ENGHELICAL AERIALS + HELICAL ANTENNAS (RADIO ENGINEERING)
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Descriptor FREANTENNES HÉLICOÏDALES (RADIOTECHNIQUE)
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Variant GERANTENNEN/WENDELANTENNEN (FUNKTECHNIK)
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Variant ENGAERIALS/HELICAL AERIALS (RADIO ENGINEERING)
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Variant ENGHELICAL ANTENNAS (RADIO ENGINEERING)
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Variant ENGANTENNAS/HELICAL ANTENNAS (RADIO ENGINEERING)
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Variant FREHÉLICOÏDALES/ANTENNES HÉLICOÏDALES (RADIOTECHNIQUE)