Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824484 | Agent for preserving wood or wood-based materials and method for preparation and use thereof | Wolfgang Metzner | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824484 | Agent for preserving wood or wood-based materials and method for preparation and use thereof | Wolfgang Metzner | 1989-04-25 |