Invention Grant
- Patent Title: Testing equipment
- Patent Title (中): 测试设备
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Application No.: US52156644Application Date: 1944-02-08
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Publication No.: US2402617APublication Date: 1946-06-25
- Inventor: FETZER KARL M , HOYT FREDERICK A
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US52156644 1944-02-08
- Main IPC: F41G7/00
- IPC: F41G7/00 ; F42B19/10
Information query
