MD

Michel Douchy

VA Vallourec: 1 patents #1 of 6Top 20%
📍 Caudry, FR: #1 of 1 inventorsTop 100%
Overall (1982): #42,822 of 81,411Top 55%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4364770 Manufacture of a composite tubular product Jean-Louis Tranchant, Michel Jehan 1982-12-21