Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313317 | Borehole logging tool cryostat | Sylvain Janssen, Alain Zarudiansky, Roland Allesch | 1982-02-02 |
| 4312192 | Borehole logging tool cryostat | Alain Zarudiansky, Sylvain Janssen | 1982-01-26 |