Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5311234 | Developing apparatus | — | 1994-05-10 |
| 5087507 | Method of rendering a document or portion of it resistant to photocopying | — | 1992-02-11 |
| 4287234 | Desensitizing ink for the receiving surface of a chemical duplicating set by wet offset printing | Albert Amon, Roger Weil | 1981-09-01 |