Invention Grant
- Patent Title: Telephone call transmitter
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Application No.: US45574442Application Date: 1942-08-22
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Publication No.: US2374082APublication Date: 1945-04-17
- Inventor: DOWEY THOMAS L
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US45574442 1942-08-22
- Main IPC: H04M1/272
- IPC: H04M1/272
Information query
