The Use of a Discharge Tube for the Transmission of Speech
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Published:1926-10-01
Issue:4
Volume:13
Page:509
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ISSN:0030-3941
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Container-title:Journal of the Optical Society of America
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language:en
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Short-container-title:J. Opt. Soc. Am.
Author:
van der Merwe C. W.
Publisher
The Optical Society
Subject
General Engineering