DEVICE FOR CHANGING SMALL-DIAMETER WORK ROLL,申请号JP19890242053-传众专利搜索

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发明名称	DEVICE FOR CHANGING SMALL-DIAMETER WORK ROLL
摘要
申请公布号	JPH02112807(A)	申请公布日期	1990.04.25
申请号	JP19890242053	申请日期	1989.09.20
申请人	HITACHI LTD	发明人	KOBAYASHI KAZUO
分类号	B21B13/14;B21B31/10	主分类号	B21B13/14
代理机构		代理人
主权项
地址

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