Mitsuo Sugimura

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Hamura, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing polyurethane lens
- Patent number 4,975,328
- Issue date Dec 4, 1990
- Hoya Corporation
- Yoshiro Hirose
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...