Synonyme wurden verwendet für:
NACHRICHT
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keywords:(NACHRICHT)
De la signalisation aux télécommunications ferroviaire
Radionavigation from satellites: the AVIC system
Radioelectric communication with ships at sea
Radioelectric communication with ships at sea
Wireless telegraphy and safety in maritime navigation
The telephone and its relation to electric tramways
A Hughes printing telegraph of large capacity
The electrical transmission of pictures