Invention Grant
- Patent Title: Electron discharge device
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Application No.: US67069233Application Date: 1933-05-12
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Publication No.: US2000938APublication Date: 1935-05-14
- Inventor: FAY CLIFFORD E
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US67069233 1933-05-12
- Main IPC: H01J25/68
- IPC: H01J25/68
Information query
