MD

Maurice Dufour

ED Essilor International (Compagnie Generale D'Optique): 3 patents #2 of 5Top 40%
Overall (1989): #8,731 of 140,708Top 7%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4854689 Progressive ophthalmic lens Gerard Obrecht 1989-08-08
4838674 Multifocal ophthalmic lens — 1989-06-13
4796988 Progressive lens Gerard Obrecht 1989-01-10