Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863345 | Turbine blade shroud structure | Alfred R. Thompson | 1989-09-05 |
RH
Roy Hirst
Overall (1989): #62,991 of 140,708Top 45%
1
Patents 1989