Gerald Roullet

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Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Device for stabilizing the output power of a transmitter module in...
- Patent number 4,399,566
- Issue date Aug 16, 1983
- Lignes Telegraphiques et Telephoniques
- Gerald Roullet
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Support apparatus for a flexible disc and disc reader using this su...
- Patent number 4,183,069
- Issue date Jan 8, 1980
- Thomson-Brandt
- Gerald Roullet
- G11 - INFORMATION STORAGE
Information Patent Grant
Automatic optical focusing device
- Patent number 4,128,309
- Issue date Dec 5, 1978
- Thomson-Brandt
- Jean-Claude Lehureau
- G02 - OPTICS
Information Patent Grant
Optical reading device comprising a focussing detection device
- Patent number 4,128,847
- Issue date Dec 5, 1978
- Thomson-Brandt
- Gerald Roullet
- G11 - INFORMATION STORAGE
Information Patent Grant
Head control means for optical videodisc player
- Patent number 4,124,868
- Issue date Nov 7, 1978
- Thomson-Brandt
- Roland Malissin
- G11 - INFORMATION STORAGE