Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934246 | Wide angled trapezoidal periscope | William M. Benson | 1990-06-19 |
| 4481862 | Automatic loading system for fixed ammunition at gun elevation | Roger H. Wiethoff | 1984-11-13 |