Wataru Tohma

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Yamatotakada, JA

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Patents Grantslast 30 patents

Information Patent Grant
Polymeric flocculant composition
- Patent number 3,957,904
- Issue date May 18, 1976
- Sumitomo Chemical Company, Limited
- Shin-ichi Isaoka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...