Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5556337 | Self-propelling harvester thresher | Franz Tophinke, Franz Heidjann, Johannes Dammann | 1996-09-17 |
| 5454758 | Self-propelling harvester thresher | Franz Tophinke, Franz Heidjann, Johannes Dammann | 1995-10-03 |