Kiyoshi Hirai

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Okayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cold-set adhesive compositions comprising polyvinyl alcohol for pap...
- Patent number 4,442,252
- Issue date Apr 10, 1984
- Unitika Ltd.
- Masao Sumi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE