Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416094 | Attic window assembly | Franz Bugener, Manfred Rinklake, Wilhelm Rottger, Gunter Jost, Johann Christian Felix Kirsch | 1983-11-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416094 | Attic window assembly | Franz Bugener, Manfred Rinklake, Wilhelm Rottger, Gunter Jost, Johann Christian Felix Kirsch | 1983-11-22 |