Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5382771 | Method for manufacturing galvanized bar segments, in particular for latticeworks or three-dimensional frameworks | Helmut Eberlein, Gunther Bruckner | 1995-01-17 |
| 4991371 | Tubular framing bar, especially a thin member for framing of rooms or open spaces | Peter Preuss | 1991-02-12 |
| 4620458 | Apparatus for screwing in set screws, which can be operated by a wrench | — | 1986-11-04 |
| 4591288 | Joint connection for space framework, made of rods and joint members | Manfred Stark | 1986-05-27 |