Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4301234 | Process for the preparation of relief-type recordings using diazonium condensation product and amine resin as light-sensitive recording layer and incoherent radiation source for recording image | — | 1981-11-17 |
| 4288520 | Process of manufacturing light-sensitive copying material based on diazonium salt condensation products | Gerhard Sprintschnik | 1981-09-08 |
| 4266006 | Process for the manufacture of imaged articles | Kurt A. Wehlmnn | 1981-05-05 |