Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861711 | Sheet-like diagnostic device | Heinz-Jurgen Friesen, Gerd Grenner, Helmut Kohl, Klaus Habenstein, Joseph Stark | 1989-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861711 | Sheet-like diagnostic device | Heinz-Jurgen Friesen, Gerd Grenner, Helmut Kohl, Klaus Habenstein, Joseph Stark | 1989-08-29 |