Toshio Okada

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Kadoma, JA

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing paper board having improved wet compression st...
- Patent number 4,091,167
- Issue date May 23, 1978
- Rengo Co., Ltd.
- Toshio Okada
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE