Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807433 | Turbine cooling air modulation | Dean T. Lenahan | 1989-02-28 |
| 4796423 | Sheet metal panel | Louis Lievestro, James S. Kelm, Arthur L. Ludwig, Thomas G. Wakeman | 1989-01-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807433 | Turbine cooling air modulation | Dean T. Lenahan | 1989-02-28 |
| 4796423 | Sheet metal panel | Louis Lievestro, James S. Kelm, Arthur L. Ludwig, Thomas G. Wakeman | 1989-01-10 |