Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858652 | Plug for an opening providing an inspection X-ray source with access to pipework or to an apparatus | Lucien Hervouin, Gilbert Vigneron | 1989-08-22 |
| 4438784 | Stopper for a source for an X-ray inspection hole in a pipe or other apparatus | Pierre Leroy | 1984-03-27 |