Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865448 | Method and aparatus for observing the internal surface of a small hole | Takashi Shiraishi | 1989-09-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865448 | Method and aparatus for observing the internal surface of a small hole | Takashi Shiraishi | 1989-09-12 |