Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708842 | Method and device for unpacking a stack in a sleeve | — | 2004-03-23 |
| 4293092 | Heating system with heat pump and auxiliary heater | Ernst Hatz, Heinz Eibl, Rolf Blumhardt | 1981-10-06 |