Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6373244 | Apparatus for marking a surface indicating elements located inwardly of the surface | — | 2002-04-16 |
| 5296807 | Apparatus for determining location of an element of magnetizable material in a construction structure | Heinz Kousek, Otto Noser, Otmar Ganahl, Hans Leemann | 1994-03-22 |
| 4807587 | Process of forming openings | Daniel Baetschmann, Karl Blaas | 1989-02-28 |
| 4711308 | Hand-held tool with vibration dampening | Karl Blaas | 1987-12-08 |