Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4203681 | Single element typewriter with error correction feature | John C. Gall, Chester E. Ozimek | 1980-05-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4203681 | Single element typewriter with error correction feature | John C. Gall, Chester E. Ozimek | 1980-05-20 |