Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35637 | Closing apparatus for the bottom pouring hole of a casting ladle | Josef Lothmann, Wolfgang Schonbrenner | 1997-10-21 |
| 5110018 | Closing apparatus for the bottom pouring hole of a casting ladle | Josef Lothmann, Wolfgang Schonbrenner | 1992-05-05 |