Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4624504 | Method of excavating overburden in surface mining operations | Rudiger Franke, Aby Weiss, Hans Goergen, Frank Kay | 1986-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4624504 | Method of excavating overburden in surface mining operations | Rudiger Franke, Aby Weiss, Hans Goergen, Frank Kay | 1986-11-25 |