Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841833 | Rotary switch for multiple shot electromagnetic launchers | David W. Scherbarth, John W. Olsen | 1989-06-27 |
| 4841181 | Electromagnetic launcher with post-firing energy recovery for slow or rapid fire operation | George A. Kemeny | 1989-06-20 |