Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6512312 | Method and a device for detecting the presence of personnel in underground mining | Bernhard Richter | 2003-01-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6512312 | Method and a device for detecting the presence of personnel in underground mining | Bernhard Richter | 2003-01-28 |