Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4661142 | Frame for supporting a glass sheet during tempering | K. Rudolf Bartusel, Werner Diederen, Eberhard Liepelt | 1987-04-28 |
| 4239274 | Self-tightening clamp for the suspension of glass sheets | Mario Roth, Hans-Peter Siemonsen | 1980-12-16 |