Invention Grant
- Patent Title: Telegraph switching system
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Application No.: US51324643Application Date: 1943-12-07
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Publication No.: US2382128APublication Date: 1945-08-14
- Inventor: BRANSON DAVID E
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US51324643 1943-12-07
- Main IPC: H04L12/54
- IPC: H04L12/54 ; H04L25/04
Information query
