Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4304287 | Flow cut-off method for foundry installations | Gerard Lavanchy, Fritz Mezger | 1981-12-08 |
| 4227565 | Flow cut-off method and apparatus for foundry installations | Gerard Lavanchy, Fritz Mezger | 1980-10-14 |