Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929719 | Leveller bar for coking ovens | Jürgen George, Klaus Dieter Ruthemann | 2005-08-16 |
| 6918999 | Device and method for sealing levelling door aperture of a coke oven chamber | Friedrich-Wilhelm Cyris, Friedrich Huhn, Franz Liesewitz | 2005-07-19 |