Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32422 | Method and apparatus for producing duplex copies | Charles T. Hage | 1987-05-19 |
| 4575222 | Apparatus for accurately forming color-corrected electrographic images | Douglas K. Ahern | 1986-03-11 |
| 4291970 | Apparatus for producing duplex copies | — | 1981-09-29 |
| 4191465 | Apparatus for producing simplex of duplex copies | Elmer E. Boase, Stuart F. Ring | 1980-03-04 |