Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822240 | Compressor thrust balancer | — | 1989-04-18 |
DM
Dale F. Marshall
Overall (1989): #122,440 of 140,708Top 90%
1
Patents 1989