Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431551 | Non-contact type mechanical seal | Eiji Okumachi | 2002-08-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431551 | Non-contact type mechanical seal | Eiji Okumachi | 2002-08-13 |