Manually actuable repertory dialer
US3940573A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1974 |
| Grant date | Feb 24, 1976 |
| Priority date | — |
| Expiry date | Jul 5, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/276
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone repertory dialer having a manually actuable mechanism mechanically operative for providing relative motion between a magnetic head and a magnetic recording surface. An elongated tape includes a magnetic recording surface and an opposite visual writing surface, the tape being carried by a transport mechanism manually movable to selected positions at which telephone number data is to be recorded or read out. Upon manual actuation of a control button the magnetic head is moved to a start position and then is caused to return at a controlled uniform rate to a home position during which return motion telephone number data is recorded or read out via the magnetic head in accordance with a selected recording or playback mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.