Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4370650 | Tone detection circuitry | — | 1983-01-25 |
| 4366509 | Facsimile apparatus with multiple scanning and printing elements | Kurt H. Petersen, Ronald F. Schmid | 1982-12-28 |
| 4280145 | Non-linear, multi-speed, bi-directional facsimile subscan drive control | — | 1981-07-21 |