Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353550 | Steel ball polishing apparatus | Tatsuo Iwai | 1994-10-11 |
| 5315791 | Steel ball machining apparatus capable of eliminating foreign matter | Tatsuo Iwai | 1994-05-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353550 | Steel ball polishing apparatus | Tatsuo Iwai | 1994-10-11 |
| 5315791 | Steel ball machining apparatus capable of eliminating foreign matter | Tatsuo Iwai | 1994-05-31 |