IP Library › Granted Patent US 4,677,342
Granted Patent Utility
US 4,677,342 · App. 06/697,540

Semiconductor secondary emission cathode and tube

Inventors: George H. MacMaster, Lawrence J. Nichols
Patented Case View Patent ↗
Granted: Jun 30, 1987 Filed: Feb 1, 1985
Inventors
George H. MacMaster
Lawrence J. Nichols
Assignee (at issue)
Raytheon Company

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Quick Facts
Patent No.
US 4,677,342
App. No.
06/697,540
Filed
1985-02-01
Granted
1987-06-30
Kind
A