Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836961 | Method of and apparatus for casting solid propellant rocket motors | Charles B. Dye | 1989-06-06 |
| 4834594 | Drill steel drive unit | — | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836961 | Method of and apparatus for casting solid propellant rocket motors | Charles B. Dye | 1989-06-06 |
| 4834594 | Drill steel drive unit | — | 1989-05-30 |