Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5142133 | Apparatus for the control of venetian blinds including photodetector means for detecting the angle of incidence of sun light | Michael Kern, Gunter Ruckstetter, Frank Zimmermann | 1992-08-25 |