Jean Pollard

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Villebon-sur-Yvette, FR

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Patents Grantslast 30 patents

Information Patent Grant
Multi-directional non-imaging radiations concentrator and/or deconc...
- Patent number 4,697,867
- Issue date Oct 6, 1987
- Michel Blanc
- G02 - OPTICS
Information Patent Grant
Device relating to electro-optical image display
- Patent number 4,613,210
- Issue date Sep 23, 1986
- Jean Pollard
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS