Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647682 | Frame with at least two hollow bars extending at right angles to one another | — | 1997-07-15 |
| 5601621 | Process for the production of a fiber material and process for the dyeing of the modified fiber material with anionic textile dyes | Andreas Schrell, Werner Russ | 1997-02-11 |