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发明名称
摘要
申请公布号	JPS5016136(U)	申请公布日期	1975.02.20
申请号	JP19730068185U	申请日期	1973.06.08
申请人		发明人
分类号	B21D37/08;B21D5/01;B21D7/02;B21D37/02;B21J5/02;B21J13/02;(IPC1-7):B21J5/02	主分类号	B21D37/08
代理机构		代理人
主权项
地址

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