Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960650 | Method of repairing or protecting an end of a metal tube in a heat exchanger and sleeve for implementing same | Jean Bezier, Thong Nguyen-Thanh, Pierre Vidal, Guy Zacharie, Lucien Guillemin | 1990-10-02 |
| 4858652 | Plug for an opening providing an inspection X-ray source with access to pipework or to an apparatus | Jacques Bobichon, Lucien Hervouin | 1989-08-22 |