Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614772 | Operating device for an electronic switching device with a changeable front foil | Klaus Butow | 1997-03-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614772 | Operating device for an electronic switching device with a changeable front foil | Klaus Butow | 1997-03-25 |