Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374031 | Butterfly-valve assembly having an admission passage of progressively-changing shape, and method of manufacturing same | Pierre Semence | 1994-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374031 | Butterfly-valve assembly having an admission passage of progressively-changing shape, and method of manufacturing same | Pierre Semence | 1994-12-20 |