Michel Liegois

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Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing an optical fibre blank
- Patent number 4,121,919
- Issue date Oct 24, 1978
- Compagnie Generale d'Electricite
- Christian Le Sergent
- G02 - OPTICS
Information Patent Grant
Method and device for depositing a layer of glass on the inner wall...
- Patent number 4,117,802
- Issue date Oct 3, 1978
- Compagnie Generale d'Electricite
- Christian Le Sergent
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...