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发明名称
摘要
申请公布号	FR2137020(A1)	申请公布日期	1972.12.29
申请号	FR19710017021	申请日期	1971.05.11
申请人	DEMURGER ET CIE ETS	发明人
分类号	B23D55/04;(IPC1-7):B23D55/00	主分类号	B23D55/04
代理机构		代理人
主权项
地址

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