Patent US 3551726A

Revision as of 04:02, 31 August 2021 by Maintenance script (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Patent number US 3551726A (click link for details and documents via Google Patents)
Title Thermionic electron emission device having low heat loss
Inventors Luther Earl Blankenship
Company Tektronix Inc
Filing date 1968-09-23
Grant date 1970-12-29