Collecteur de poussières de forage,申请号FRD1004427-传众专利搜索

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法人/股东/高管

发明名称	Collecteur de poussières de forage
摘要
申请公布号	FR1004427(A)	申请公布日期	1952.03.31
申请号	FRD1004427	申请日期	1947.04.21
申请人		发明人	LOBBERT ANTON
分类号	E21B21/015	主分类号	E21B21/015
代理机构		代理人
主权项
地址

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