Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4645581 | Apparatus for electropolishing the inner surface of U-shaped heat exchanger tubes | Hermann Operschall, Jakob Weber | 1987-02-24 |
| 4634511 | Device for electropolishing the inner surface of hollow cylindrical bodies | Hermann Operschall, Klaus Steiner | 1987-01-06 |