Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H981 | Process for selective grinding of coal | August D. Benz, Horst Huettenhain | 1991-11-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H981 | Process for selective grinding of coal | August D. Benz, Horst Huettenhain | 1991-11-05 |