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Method of molding an intraocular lens
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Patent number 4,971,732
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Issue date Nov 20, 1990
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Ceskoslovenska Academie Ved
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Otto Wichterle
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Toric hydrogel contact lens
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Patent number 4,256,369
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Issue date Mar 17, 1981
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SPOFA, spojene podniky pro zdravotnichou
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Otto Wichterle
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G02 - OPTICS
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Method for manufacturing hydrogel tubes
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Patent number 4,183,884
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Issue date Jan 15, 1980
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Ceskoslovenska akademie ved
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Otto Wichterle
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Soft contact lens with thin edge
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Patent number 4,153,349
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Issue date May 8, 1979
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NPD Technologies, Inc.
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Otto Wichterle
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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