Invention Grant
- Patent Title: Telephone system
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Application No.: US44133042Application Date: 1942-05-01
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Publication No.: US2332912APublication Date: 1943-10-26
- Inventor: GEORGE HECHT , LUNDSTROM ALEXIS A , TAYLOR EDMUND R
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US44133042 1942-05-01
- Main IPC: H04Q3/42
- IPC: H04Q3/42
Information query
