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Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo
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Communication Cables
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Structure Of Telephone Exchanges
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Verfahren zur Vermeidung von schälllichen Nebensprechlropplunge. n in viererverseilten Fernsprech- kabeln.
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AT138313D1929-07-101930-07-09Verfahren zur Vermeidung von schädlichen Nebensprechkopplungen in viererverseilten Fernsprechkabeln.
AT138313B
(de)