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Fiber collagen contact lens
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Patent number 4,268,131
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Issue date May 19, 1981
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Opticol Corporation
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Teruo Miyata
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Collagen soft contact lens
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Patent number 4,223,984
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Issue date Sep 23, 1980
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Opticol Corporation
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Teruo Miyata
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Collagen drug delivery device
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Patent number 4,164,559
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Issue date Aug 14, 1979
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Cornell Research Foundation, Inc.
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Teruo Miyata
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE