Invention Grant
- Patent Title: Selecting system
- Patent Title (中): 选择系统
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Application No.: US37799441Application Date: 1941-02-08
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Publication No.: US2291036APublication Date: 1942-07-28
- Inventor: HALL NATHAN I
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US37799441 1941-02-08
- Main IPC: H04Q3/00
- IPC: H04Q3/00
Information query
