Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342252 | Tandem rocket launcher | Allen C. Hagelberg | 1982-08-03 |
| 4341173 | Hydropulse underwater propulsion system | Allen C. Hagelberg | 1982-07-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342252 | Tandem rocket launcher | Allen C. Hagelberg | 1982-08-03 |
| 4341173 | Hydropulse underwater propulsion system | Allen C. Hagelberg | 1982-07-27 |