Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147147 | Method for the removal of aqueous liquids from the sump of an underground cavity | Jurgen Martens, Werner Harms, Uwe Kramer | 1992-09-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147147 | Method for the removal of aqueous liquids from the sump of an underground cavity | Jurgen Martens, Werner Harms, Uwe Kramer | 1992-09-15 |