Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302275 | Cassette recorder | Emil F. Jachmann | 1989-07-18 |
| D301337 | Display attachment for a modular dictation unit or the like | Andrew J. Blance | 1989-05-30 |
| D299716 | Telephone answering machine | Andrew J. Blance | 1989-02-07 |