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Roll for rolling mill
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Patent number 4,599,770
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Issue date Jul 15, 1986
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Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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Heiji Kato
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rolling process
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Patent number 4,365,496
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Issue date Dec 28, 1982
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Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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Hiroyuki Shiozaki
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Continuous rolling mill
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Patent number 4,173,133
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Issue date Nov 6, 1979
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Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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Isao Imai
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Metal rolling process and mill
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Patent number 4,152,912
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Issue date May 8, 1979
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Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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Hiroyuki Shiozaki
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rolling mill
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Patent number 4,145,901
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Issue date Mar 27, 1979
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Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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Isao Imai
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Rolling mill
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Patent number 4,145,902
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Issue date Mar 27, 1979
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Ishikawajima-Harima Jukogyo Kabushiki Kaisha
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Isao Imai
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...