Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4341406 | Pipe coupling comprising a chain collar | Raymond de Villepoix, Christian Rouaud | 1982-07-27 |
| 4327942 | Self-locking union | Raymond de Villepoix, Christian Rouaud | 1982-05-04 |