GO

Gerard Obrecht

ED Essilor International (Compagnie Generale D'Optique): 2 patents #4 of 5Top 80%
Overall (1989): #27,241 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4854689 Progressive ophthalmic lens Maurice Dufour 1989-08-08
4796988 Progressive lens Maurice Dufour 1989-01-10