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发明名称
摘要
申请公布号	FR2449167(B3)	申请公布日期	1981.12.11
申请号	FR19790003653	申请日期	1979.02.13
申请人	BONNENFANT MICHEL	发明人
分类号	E02D5/54;E02D5/80;(IPC1-7):E02D5/54	主分类号	E02D5/54
代理机构		代理人
主权项
地址

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