Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867655 | Variable stiffness oil film damper | John R. Barbic, Kurt L. Nichol, David H. Hibner | 1989-09-19 |
DS
David R. Szafir
Overall (1989): #121,523 of 140,708Top 90%
1
Patents 1989