Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092695 | Printer having ribbon wear indicator | Stanley Silverman, Kenneth A. Konechy, Ray G. Van De Walker | 1992-03-03 |
| 4984913 | Printer having ribbon wear indicator | Stanley Silverman, Kenneth A. Konechy, Ray G. Van De Walker | 1991-01-15 |