Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913777 | Rock drill | Wolfgang Rieger | 2011-03-29 |
HD
Helmut Duscha
Overall (2011): #289,672 of 364,097Top 80%
1
Patents 2011