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Takeo Taniuchi
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Tokyo, JA
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last 30 patents
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Patent Grant
Case-hardening method for carbon steel
Patent number
4,007,302
Issue date
Feb 8, 1977
Kabushiki Kaisha Daini Seikosha
Hiroshi Hashimoto
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...