Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4709629 | Roll with pressure chamber for detection control | Valentin Appenzeller, by Maria Appenzeller, heir, by Regine Appenzeller, heir, by Ernst Appenzeller, heir | 1987-12-01 |