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发明名称	Inverseur d'aérage
摘要
申请公布号	FR1007985(A)	申请公布日期	1952.05.12
申请号	FRD1007985	申请日期	1949.11.05
申请人	MATEMINE	发明人
分类号	E21F1/08	主分类号	E21F1/08
代理机构		代理人
主权项
地址

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