Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H682 | Erosion rate determinator: rocket nozzle | — | 1989-10-03 |
| H630 | Aging gauge | John F. Crawford | 1989-04-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H682 | Erosion rate determinator: rocket nozzle | — | 1989-10-03 |
| H630 | Aging gauge | John F. Crawford | 1989-04-04 |