Invention Grant
- Patent Title: Signaling system
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Application No.: US26215239Application Date: 1939-03-16
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Publication No.: US2246952APublication Date: 1941-06-24
- Inventor: REA WILTON T
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US26215239 1939-03-16
- Main IPC: H04L12/00
- IPC: H04L12/00
Information query
