Koji Watanabe

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Porcelain-enameled steel sheets and frits for enameling
- Patent number 5,993,974
- Issue date Nov 30, 1999
- Kawasaki Steel Corporation
- Yasumasa Fukushima
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...