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Test of an artificial aerial telephone line at a frequency of 750 cycles per second
Kennelly, A. E., Lieberknecht, F. W.Volume:
32
Language:
english
Journal:
Proceedings of the American Institute of Electrical Engineers
DOI:
10.1109/paiee.1913.6660745
Date:
June, 1913
File:
PDF, 2.12 MB
english, 1913