Invention Grant
- Patent Title: Telephone coin collector
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Application No.: US27163039Application Date: 1939-05-04
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Publication No.: US2235648APublication Date: 1941-03-18
- Inventor: SHANN OSCAR A , SMITH ALBERT K
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US27163039 1939-05-04
- Main IPC: H04M17/02
- IPC: H04M17/02
Information query
