Isao Hirano

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyoxypropylene polyoxyethylene addition ether of higher branched...
- Patent number 4,171,455
- Issue date Oct 16, 1979
- Shiseido Company Ltd.
- Kenichi Tomita
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE