Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676888 | Ecological quality improvement of water for domestic use | Horst Kohl | 1997-10-14 |
| 5667769 | Process and arrangement for treating hair and the skins of the head and/or body with CO.sub.2 | Horst Kohl | 1997-09-16 |