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发明名称
摘要
申请公布号	JPS6313841(Y2)	申请公布日期	1988.04.19
申请号	JP19810040991U	申请日期	1981.03.24
申请人		发明人
分类号	B21B13/14;B21B27/02;B21B27/03;(IPC1-7):B21B13/14	主分类号	B21B13/14
代理机构		代理人
主权项
地址

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