Invention Grant
- Patent Title: Electron discharge device
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Application No.: US34591140Application Date: 1940-07-17
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Publication No.: US2350003APublication Date: 1944-05-30
- Inventor: WEST JOHN W
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US34591140 1940-07-17
- Main IPC: H01J1/18
- IPC: H01J1/18
Information query
