IP Library › Granted Patent US 3,946,268
Granted Patent Utility
US 3,946,268 · App. 05/516,323

Field emission gun improvement

Inventor: Leonard M. Welter
Patented Case View Patent ↗
Granted: Mar 23, 1976 Filed: Oct 21, 1974
Inventor
Leonard M. Welter
Assignee (at issue)
American Optical Corporation

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Quick Facts
Patent No.
US 3,946,268
App. No.
05/516,323
Filed
1974-10-21
Granted
1976-03-23
Kind
A