Invention Grant
- Patent Title: Telephone pay station
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Application No.: US63189456Application Date: 1956-12-31
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Publication No.: US2883463APublication Date: 1959-04-21
- Inventor: GOODALE JR WALTER D , WILLIAM PFERD
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US63189456 1956-12-31
- Main IPC: H04M17/02
- IPC: H04M17/02
Information query
