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Michel Jean Marcel Lecerf
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Amfreville La Campane, FR
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last 30 patents
Information
Patent Grant
Grinding machine for ophthalmic glasses
Patent number
5,759,084
Issue date
Jun 2, 1998
Buchmann Optical Engineering
Michel Jean Marcel Lecerf
B24 - GRINDING POLISHING
Information
Patent Grant
Frame holder for prescription glasses
Patent number
5,554,067
Issue date
Sep 10, 1996
Buchmann Optical Engineering
Michel J. M. Lecerf
B24 - GRINDING POLISHING
Information
Patent Grant
Automatic machine for grinding and bevelling ophthalmic glasses
Patent number
5,371,974
Issue date
Dec 13, 1994
Buchmann Optical Engineering
Michel J. M. Lecerf
B24 - GRINDING POLISHING
Information
Patent Grant
Machines for grinding and bevelling opthalmic lenses
Patent number
5,321,915
Issue date
Jun 21, 1994
Buchmann Optical Engineering
Michel J. M. Lecerf
B24 - GRINDING POLISHING
Information
Patent Grant
Apparatus for automatically taking a reading of the shape and/or th...
Patent number
5,307,150
Issue date
Apr 26, 1994
Buchmann Optical Engineering
Michel J. M. Lecerf
G02 - OPTICS
Information
Patent Grant
Device for recalibrating a machine for grinding ophthalmic glasses
Patent number
5,161,333
Issue date
Nov 10, 1992
Briot International
Michel J. M. Lecerf
B24 - GRINDING POLISHING
Information
Patent Grant
Tool for machining and bevelling polycarbonate ophthalmic glasses l...
Patent number
4,978,254
Issue date
Dec 18, 1990
Briot International
Jean-Pierre M. F. Langlois
B24 - GRINDING POLISHING
Information
Patent Grant
Glasses frame carrier for a reproducing machine
Patent number
4,930,952
Issue date
Jun 5, 1990
Briot International
Michel J. M. Lecerf
B24 - GRINDING POLISHING
Information
Patent Grant
Machines for grinding and bevelling ophthalmic glasses
Patent number
4,829,715
Issue date
May 16, 1989
Briot International
Jean-Pierre M. F. Langlois
B24 - GRINDING POLISHING