Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653312 | Elevator governor | — | 1997-08-05 |
| 5653948 | Method for calcining fine limestone powder | Sozo Nakazawa | 1997-08-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653312 | Elevator governor | — | 1997-08-05 |
| 5653948 | Method for calcining fine limestone powder | Sozo Nakazawa | 1997-08-05 |