Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6685878 | Throat closing device for shaft furnaces, especially blast furnaces having a material feeding hopper | Jörg Overländer, Heinz-Peter Marciniak | 2004-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6685878 | Throat closing device for shaft furnaces, especially blast furnaces having a material feeding hopper | Jörg Overländer, Heinz-Peter Marciniak | 2004-02-03 |