Tetsuo Ohishi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Diphenylamine derivatives and degradation inhibitors for rubber pol...
- Patent number 4,298,522
- Issue date Nov 3, 1981
- Nippon Zeon Co. Ltd.
- Mitsuhiro Tamura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...