Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4665852 | Device for securing a forked boom to the mast of a sailboard | Hannes Marker, Karl Janich | 1987-05-19 |
| 4449466 | Sailboard | Hannes Marker | 1984-05-22 |
| 4273062 | Device for connecting a sailmast to a sailboard | Hannes Marker | 1981-06-16 |