Guena elle Harie

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Marseille, FR

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Patents Grantslast 30 patents

Information Patent Grant
Ring spiro [fluorene-[2H]-benzopyranes] and their use in ophthalmic...
- Patent number 5,604,280
- Issue date Feb 18, 1997
- Essilor International Compagnie Generale D'Optique
- Jean L. Pozzo
- C07 - ORGANIC CHEMISTRY