Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5412811 | Headgear having a holding device for holding an instrument | Peter Hildenbrand, Walter Matuschek | 1995-05-09 |
| D345798 | Headband for supporting one or more medical instruments | Peter Hildenbrand, Walter Matuschek | 1994-04-05 |
| 4415243 | Optical test chart for testing binocular reading ability | Horst Falk | 1983-11-15 |