Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798515 | Variable nozzle area turbine vane cooling | Edward Hsia, William K. Koffel | 1989-01-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798515 | Variable nozzle area turbine vane cooling | Edward Hsia, William K. Koffel | 1989-01-17 |