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Tadashi Hashimoto
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Hitachi-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Rolling mill and rolling mill method
Patent number
5,038,591
Issue date
Aug 13, 1991
Hitachi, Ltd.
Sadayoshi Tajima
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
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Patent Application
Rolling mill and rolling method
Publication number
20020023473
Publication date
Feb 28, 2002
Hitachi, Ltd.
Takehisa Harako
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...