Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4606661 | Proportional vertical and horizontal ribbon tracking for impact printers | Charles Stanley Aldrich, James Booth, Lloyd Phillip Young | 1986-08-19 |
| 4272813 | Communicating typewriter and dictation system utilizing analog recording and transmission techniques | Dan M. Howell, Robert A. Kolpek | 1981-06-09 |