Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642786 | Securing and tensioning device for a towing cable connected to a percussion boring machine | Alfons Hesse | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642786 | Securing and tensioning device for a towing cable connected to a percussion boring machine | Alfons Hesse | 1997-07-01 |