Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844859 | Removable and lockable guide ring in an orifice passing through a plate and its use for a guide tube of a nuclear reactor | — | 1989-07-04 |
| RE32832 | Temporary obturation panel of a passage inside a vessel accessible only through an orifice of smaller size | Claude Lavaleric | 1989-01-17 |