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发明名称
摘要
申请公布号	JPH0698501(B2)	申请公布日期	1994.12.07
申请号	JP19900286774	申请日期	1990.10.24
申请人		发明人
分类号	B21C37/30;B23K10/00;(IPC1-7):B23K10/00	主分类号	B21C37/30
代理机构		代理人
主权项
地址

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