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Rough rolling mill train
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Patent number 5,931,040
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Issue date Aug 3, 1999
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Hitachi, Ltd.
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Tomoaki Kimura
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Integrated manufacturing system
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Patent number 5,634,510
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Issue date Jun 3, 1997
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Hitachi, Ltd.
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Satoshi Hirano
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Leveling device and leveling method
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Patent number 5,329,798
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Issue date Jul 19, 1994
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Hitachi, Ltd.
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Yoshio Takakura
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Hot strip plant
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Patent number 5,150,597
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Issue date Sep 29, 1992
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Hitachi, Ltd.
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Teruo Sekiya
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Descaling rolled material
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Patent number 5,036,689
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Issue date Aug 6, 1991
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Hitachi, Ltd.
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Teruo Sekiya
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rollers for rolling mills
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Patent number 4,941,251
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Issue date Jul 17, 1990
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Hitachi, Ltd.
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Masahisa Sobue
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Multihigh rolling mill
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Patent number 4,918,965
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Issue date Apr 24, 1990
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Hitachi, Ltd.
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Kazuo Kobayashi
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Roll driving apparatus for rolling mill
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Patent number 4,903,518
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Issue date Feb 27, 1990
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Hitachi, Ltd.
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Tomoaki Kimura
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rollers for rolling mills
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Patent number 4,839,949
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Issue date Jun 20, 1989
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Hitachi, Ltd.
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Masahisa Sobue
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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