Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806075 | Turbomolecular pump with improved bearing assembly | Gordon E. Osterstrom, Leonid Livshits | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806075 | Turbomolecular pump with improved bearing assembly | Gordon E. Osterstrom, Leonid Livshits | 1989-02-21 |