Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871473 | Wood preservative | Reimer Goettsche | 1989-10-03 |
| 4857322 | Wood preservative | Reimer Goettsche, Wendelin Hettler | 1989-08-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871473 | Wood preservative | Reimer Goettsche | 1989-10-03 |
| 4857322 | Wood preservative | Reimer Goettsche, Wendelin Hettler | 1989-08-15 |