Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428065 | Data processing system with multiple display apparatus | William S. Duvall | 1984-01-24 |
| 4298957 | Data processing system with character sort apparatus | William S. Duvall | 1981-11-03 |