Invention Grant
- Patent Title: Signaling
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Application No.: US46606730Application Date: 1930-07-07
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Publication No.: US2155192APublication Date: 1939-04-18
- Inventor: JOHNSON JOHN B
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US46606730 1930-07-07
- Main IPC: H01J29/52
- IPC: H01J29/52
Information query
