Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407297 | Circuit board retainer having a spring body member | Conrad Hulme | 1995-04-18 |
| 5404274 | Assembly for receiving and retaining a circuit board retainer | Conrad Hulme | 1995-04-04 |
| 5309325 | Locking circuit board injector/extractor | John P. Dreher | 1994-05-03 |
| 4713835 | Telephone answering machine with automatic recording and visual display of time and data | Gerald L. Mock | 1987-12-15 |
| 4703498 | Message playback control system for telephone answering machine | — | 1987-10-27 |
| 4672659 | Single tape automatic telephone answering machine | Bradford E. Hanscom | 1987-06-09 |
| D289042 | Cordless handset and stand telephone unit | — | 1987-03-31 |
| D288561 | Cordless handset and stand telephone unit | — | 1987-03-03 |
| D287971 | Cordless handset and stand telephone unit | — | 1987-01-27 |
| 4581485 | Data storage system for telephone answering machine | Masroor A. Batla | 1986-04-08 |
| 4571458 | Telephone answering system with additional message storage capabilities | — | 1986-02-18 |
| 4560832 | Telephone system | Masroor A. Batla | 1985-12-24 |
| 4558179 | Message playback control system for telephone answering machine | — | 1985-12-10 |
| 4525603 | Ring and line monitor for answering machine | — | 1985-06-25 |