Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603589 | Method for manufacturing an anchor element for a soil anchor for a rock anchor, rock bolt or the like, from a strand of twisted steel wire | Hans Peter Von Allmen, Reinhard Klockner, Otmar Langwadt | 1997-02-18 |