Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6059493 | Manual machine tool with tool holder and appropriate tool | Manfred Kirn, Ernst Kraenzler, Ernst Dreher, Gerd Hahn, David Matzo +6 more | 2000-05-09 |
| 4748353 | Hand tool for clockwise and counterclockwise rotations | Werner Rieker, Gunter Schaal | 1988-05-31 |
| 4515303 | Electric hammering apparatus with air-cushioned armature | Fritz Schadlich, Werner Rieker, Rainer Thaler | 1985-05-07 |