Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779462 | Apparatus for the automatic measurement of the apparent density of the mud in a liquid, system for the automatic measurement of the ponsar index of such a mud using the apparatus and process for measuring said index | Joseph Boullet, Jean-Francois Cotro, Philippe De Jongh, Thomas Peaucelle | 1988-10-25 |