Invention Grant
- Patent Title: Training device for object locating signaling systems
- Patent Title (中): 对象定位信令系统的训练装置
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Application No.: US51306543Application Date: 1943-12-06
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Publication No.: US2442351APublication Date: 1948-06-01
- Inventor: FRITSCHI WALTER W
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US51306543 1943-12-06
- Main IPC: G01S7/40
- IPC: G01S7/40
Information query
