Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D348675 | Pay type telephone station volume control push-button switch | — | 1994-07-12 |
| D348471 | Pay type telephone station volume control push-button switch | — | 1994-07-05 |
| 5321584 | Battery and holder assembly for use with a battery operated touch pen | — | 1994-06-14 |
| 5315645 | Communication apparatus utilizing digital optical signals | — | 1994-05-24 |