Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197382 | Copy sheet proofing system | — | 1993-03-30 |
| 5050494 | Fine adjustment system of finishing head in a printing, duplicating and like machine | — | 1991-09-24 |
| 5031533 | Adjustable ink fountain for duplicating machines | — | 1991-07-16 |
| 4967659 | System for readily interchanging an adjustable printing head on a rotatable shaft | Charles T. Richards | 1990-11-06 |
| 4677912 | Ink fountain preparation station and interchangeable ink fountain system | — | 1987-07-07 |
| 4667949 | Sheet stacking device | James E. L. Zeigler | 1987-05-26 |
| 4529190 | Sheet unloading device | James E. L. Zeigler | 1985-07-16 |
| 4506879 | Sheet registering mechanism | James E. L. Zeigler | 1985-03-26 |
| 4327641 | Dual-head duplicator with alternate simplexing capability | Thomas J. Borke, Joel D. Armstrong | 1982-05-04 |