Francois Laurent

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Yverdon, CH

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Patents Grantslast 30 patents

Information Patent Grant
Varifocal optical system
- Patent number 4,269,484
- Issue date May 26, 1981
- Bolex International SA
- Francois Laurent
- G02 - OPTICS
Information Patent Grant
Varifocal objective with focal length adjustment
- Patent number 4,174,153
- Issue date Nov 13, 1979
- Bolex International SA
- Francois Laurent
- G02 - OPTICS
Information Patent Grant
Wide-angle attachment for varifocal objective
- Patent number 4,110,005
- Issue date Aug 29, 1978
- Bolex International SA
- Kurt Bohm
- G02 - OPTICS