Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829529 | Method and device for producing by pumping in a horizontal drain hole | Henri Cholet, Christian Wittrisch | 1998-11-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829529 | Method and device for producing by pumping in a horizontal drain hole | Henri Cholet, Christian Wittrisch | 1998-11-03 |