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发明名称
摘要
申请公布号	DE2124706(A1)	申请公布日期	1972.02.17
申请号	DE19712124706	申请日期	1971.05.18
申请人		发明人
分类号	B21D3/05;(IPC1-7):B21D3/02	主分类号	B21D3/05
代理机构		代理人
主权项
地址

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