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- 25002894 alternative "Thermionic current in vacuum tubes.".
- 25002894 contributor B662217.
- 25002894 created "1924]".
- 25002894 date "1924".
- 25002894 date "1924]".
- 25002894 dateCopyrighted "1924]".
- 25002894 description "Thesis (Ph. D.) - Cornell University, 1922.".
- 25002894 extent "1 p. l., p. 501-506".
- 25002894 issued "1924".
- 25002894 issued "1924]".
- 25002894 language "eng".
- 25002894 publisher "[Corning, N.Y., and Menasha, Wis.,".
- 25002894 subject "TK5865 .H9 1922".
- 25002894 subject "Vacuum-tubes.".
- 25002894 title "The modification of the thermionic current in vacuum tubes when potassium deposited on the inside walls or grid of the tube is illuminated ... by J. M. Hyatt ...".
- 25002894 type "text".