Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888515 | Rotary power unit | — | 1989-12-19 |
| 4874239 | Distance measuring device | — | 1989-10-17 |
| D302273 | Public pay telephone set | Kenichi Adachi | 1989-07-18 |
| 4837470 | Magnetically driven nutating motor | — | 1989-06-06 |