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发明名称
摘要
申请公布号	JPS5496732(U)	申请公布日期	1979.07.09
申请号	JP19770170656U	申请日期	1977.12.20
申请人		发明人
分类号	B21D3/05;(IPC1-7):B21D3/05	主分类号	B21D3/05
代理机构		代理人
主权项
地址

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