Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626469 | Scroll apparatus | — | 1997-05-06 |
| 5611660 | Compound vacuum pumps | David C. Wong | 1997-03-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626469 | Scroll apparatus | — | 1997-05-06 |
| 5611660 | Compound vacuum pumps | David C. Wong | 1997-03-18 |