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NACHRICHT
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keywords:(NACHRICHT)
Rulings for public wireless service in Germany
A Hughes printing telegraph of large capacity
The telautograph as used in railway service
Perturbations dues au courant de traction
Railway telephony in the United States of America
Wireless telegraphy as a safeguard in railway service
The naval radio stations of the Panama canal zone
Wireless telegraphy and safety in maritime navigation
The telephone and its relation to electric tramways
Operating railway selectors without batteries
The application of radiotelegraphy to the air ship
The wireless telegraph installation on the steamer "imperator"
Traffic distribution in manual telephone exchanges
The two-tone vibrating transmitter and inductive signaling
Examination of telegraphers for railroad work