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- 20026664 contributor B604650.
- 20026664 created "1920.".
- 20026664 date "1920".
- 20026664 date "1920.".
- 20026664 dateCopyrighted "1920.".
- 20026664 extent "p. 259-271 incl. illus., tables.".
- 20026664 isPartOf "Scientific papers of the Bureau of Standards, no. 381".
- 20026664 issued "1920".
- 20026664 issued "1920.".
- 20026664 language "eng".
- 20026664 publisher "Washington, Govt. Print. Off.,".
- 20026664 subject "TK5865 .H83".
- 20026664 subject "Telegraph, Wireless.".
- 20026664 title "An electron tube transmitter of completely modulated waves, by Lewis M. Hull, associate physicist, Bureau of Standards. June 18, 1920 ...".
- 20026664 type "text".