Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863485 | Fuel briquettes | Wolfgang Cieslik, Heinz Opdenwinkel, Axel Vogts, Gunter Poppel, Horst Schurmann | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863485 | Fuel briquettes | Wolfgang Cieslik, Heinz Opdenwinkel, Axel Vogts, Gunter Poppel, Horst Schurmann | 1989-09-05 |