Electron discharge device
United States Patent 3072817
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- - 2830223

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- - 2843788

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Inventors:
Gordon, Eugene I.
Publication Date:
01/08/1963
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Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
315/3
Other Classes:
330/4.700, 315/5.340, 330/47, 330/43, 315/5.390
International Classes:
H01J25/49; H01J25/00
US Patent References:
2959740Parametric amplifier modulation expander