Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710208 | Suspendable modular frame arrangement for clean room ceilings having a fluid seal | Wolf Ziemer, Fritz Neubert | 1987-12-01 |
| 4554766 | Ceiling construction for clean rooms | Wolf Ziemer | 1985-11-26 |