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| Date from | Date to | Event | Source |
|---|---|---|---|
| 1742 | 1748 | Appointed Sous-Constructeur de la Marine at Brest not appointed | ref:1275 |
| 1744 | Designed Galatée Class (1744) - 24 gun Frigate | ||
| 8.1746 | Launched La Macreuse (10)
1746-1755 , Gabarre at Brest - Brittany
French 10 Gun Unrated Gabarre | NNF-1715 | |
| 1748 | 1756 | Appointed Sous-Constructeur de la Marine at Brest He built several port vessels as well the ship of 64-gun "Bienfaisant" : listed as Geoffroy Jean ? | ref:1275 |
| 17.11.1751 | Launched La Thétis (26)
1751-1777 , Frigate at Brest - Brittany
French 26 Gun 6th Rate Frigate | ref:1275 | |
| 31.8.1752 | 22.5.1764 | Appointed Membre Adjoint de l’Académie de Marine | ref:1275 |
| 20.12.1752 | Launched L'Héroine (26)
1752-1779 , Frigate at Brest - Brittany
French 26 Gun 6th Rate Frigate | ref:1275 | |
| 3.6.1754 | Launched L'Améthyste (30)
1754-1771 , Frigate at Brest - Brittany
French 30 Gun 5th Rate Frigate | ref:1275 | |
| 1756 | Appointed Sous-Constructeur de la Marine at Bayonne He built the 32-gun frigates the "Hermine" and "Opale" and the 28-barrel flutes of "Adour" and "Utile" . ?? listed on Jean Geoffroy | ref:1275 | |
| 1757 | Appointed Constructeur de la Marine | ref:1275 | |
| 1764 | He's leading the overhaul of the 56-gun "Amphion" . | ref:1275 |