Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4344595 | Auxiliary apparatus at a stand for an optical observation device | Rudolf Heller | 1982-08-17 |
| 4339100 | Arrangement at a stand for an optical observation device | Rudolf Heller | 1982-07-13 |