Joji Okamoto

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Yanai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of applying slip to interior surfaces of a closed tank to pr...
- Patent number 4,273,811
- Issue date Jun 16, 1981
- Hitachi, Ltd.
- Joji Okamoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...