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Steen Weichel
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Frederiksberg, DK
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Patents Grants
last 30 patents
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Patent Grant
Grating structures and methods of making the grating structures
Patent number
6,762,880
Issue date
Jul 13, 2004
Ibsen Photonics A/S
Johan Christer Holm
G02 - OPTICS
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last 30 patents
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Patent Application
Grating structures and methods of making the grating structures
Publication number
20020135876
Publication date
Sep 26, 2002
Johan Christer Holm
G02 - OPTICS