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法人/股东/高管

发明名称
摘要
申请公布号	DD124013(A1)	申请公布日期	1977.02.02
申请号	DD19760191408	申请日期	1976.02.23
申请人		发明人
分类号	B21D51/38;B23K37/02;(IPC1-7):B21D51/38	主分类号	B21D51/38
代理机构		代理人
主权项
地址

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