Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799822 | Profile elements, particularly for supply and/or removal of substances from environmental and/or flow material | Oswald Landwehr | 1989-01-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799822 | Profile elements, particularly for supply and/or removal of substances from environmental and/or flow material | Oswald Landwehr | 1989-01-24 |