Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996849 | Air conditioning system | Hermann Burst, Horst Petri, Bernhard Ritter, Walter Pross | 1991-03-05 |
| 4709134 | Antifogging device for a display glass of an indicating instrument | Klaus Amann | 1987-11-24 |