Seiji Yamamoto

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Himeji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Water-cooled lid made of steel tubing for electric furnace
- Patent number 4,417,343
- Issue date Nov 22, 1983
- Nikko Co., Ltd.
- Seiji Yamamoto
- F27 - FURNACES KILNS OVENS RETORTS