Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624784 | Kit of parts for making an alkaline processing liquid for processing a lithographic printing plate | Jos Vaes, Lode Erik Dries Deprez | 1997-04-29 |
| 5618653 | Kit for preparing a processing liquid for use in the preparation of a lithographic printing plate according to the silver salt diffusion transfer process | Jos Vaes | 1997-04-08 |