Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688376 | Method for the gas sealing manufacture of a door frame of a coke oven battery and such a door frame structure | Hans Smits | 1997-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688376 | Method for the gas sealing manufacture of a door frame of a coke oven battery and such a door frame structure | Hans Smits | 1997-11-18 |