,申请号DD19760194431-传众专利搜索

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发明名称
摘要
申请公布号	DD127340(A1)	申请公布日期	1977.09.21
申请号	DD19760194431	申请日期	1976.08.23
申请人		发明人
分类号	B21B1/40;B21B35/10;B21B39/00;B21B39/02;B21B39/14;(IPC1-7):B21B39/16	主分类号	B21B1/40
代理机构		代理人
主权项
地址

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