FD

Francis Defretin

PK P C U K Produits Chimiques Ugine Kuhlmann: 1 patents #6 of 30Top 20%
📍 Halluin, FR: #1 of 1 inventorsTop 100%
Overall (1982): #17,503 of 81,411Top 25%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4314907 Oil additive compositions for internal combustion engines Jean-Paul Eudeline, Elisabeth Schoch, Alain Voisin 1982-02-09