Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357764 | Submarine vehicle for dredging and raising minerals resting on the sea bed at great depths | Pierre Lemercier, Paul Marchal, Jean Vertut, Henri Ligozat | 1982-11-09 |
| 4338043 | Method for depositing material on the ocean bed and apparatus for performing the same | Pierre Biancale, Yves-Paul Corfa, Pierre Lemercier, Jean Vertut | 1982-07-06 |