Photo tubes and their manufacture
United States Patent 2922216
US Patent References:
/0548036.html
- - 0548036

Prefocused lamp base
- - 2082954

Vacuum tube
- - 2141256

Base construction for electron tubes
- - 2337401

Method for insulating electrical equipment
- - 2511436


Inventors:
Mcilvaine, Oran T.
Publication Date:
01/26/1960
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Assignee:
Mcilvaine, Oran T.
Primary Class:
445/44
Other Classes:
313/318.120, 29/873, 264/219, 313/318.050, 250/214.100, 264/259, 174/50.520, 29/423
International Classes:
H01J9/30; H01L31/00; H01J9/24
US Patent References:
2569848Electron tube seal structure
2623090Electron discharge device of the disk seal type
2713700Method of producing sealed capacitors