Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369094 | Method of preventing the entry of air into the housing of a charging device which conveys coal | Claus Flockenhaus, Gunter Gabriel, Paul-Heinz Heesen, Joachim F. Meckel, Manfred Galow | 1983-01-18 |