Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852857 | Protective device for submersible lance in steel making or the like | Winfried Heinz | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852857 | Protective device for submersible lance in steel making or the like | Winfried Heinz | 1989-08-01 |