Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4903410 | Guide bar for a chain saw | Klaus Wieninger, Walter Sattelmaier, Hans P. Stehle, Norbert Apfel | 1990-02-27 |
| 4768289 | Cobalt base alloy coating for a guide bar of a chain saw | Norbert Apfel, Hans P. Stehle, Horst Doren, Klaus-Dieter Wernicke | 1988-09-06 |
| 4693007 | Guide bar for a chain saw | Norbert Apfel, Hans P. Stehle | 1987-09-15 |
| 4635364 | Braking arrangement for a chain saw | Konrad Ehmann, Hans P. Stehle, Wolfgang C. Dorner, Gunter Dietzsch | 1987-01-13 |