Invention Grant
- Patent Title: Thermionic tube
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Application No.: US4858935Application Date: 1935-11-06
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Publication No.: US2149656APublication Date: 1939-03-07
- Inventor: HOWARD ARMSTRONG HARRY , BURLEY MENEFEE ARTHUR
- Applicant: TUNGSTEN ELECTRODEPOSIT CORP
- Assignee: Tungsten Electrodeposit Corp
- Current Assignee: Tungsten Electrodeposit Corp
- Priority: US4858935 1935-11-06
- Main IPC: H01J1/146
- IPC: H01J1/146 ; H01J5/08
Information query
