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Assignee: Tanoptic AG

Location: Basel, CH
No. of patents: 1

Number	Title	Issue Date
5321441	Sunglass lenses having UV blocking central zone The present invention provides a sunglass lens having a central region which is provided with an ultra-violet screening agent to protect the eye while the surrounding regions of the lens have little or no screening agent so as to permit tanning of the ski...	06/14/1994