Sonde de forage à clapets,申请号FR19660054632-传众专利搜索

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发明名称	Sonde de forage à clapets
摘要
申请公布号	FR1471918(A)	申请公布日期	1967.03.03
申请号	FR19660054632	申请日期	1966.03.23
申请人	ZAKLADY REMONTU MASZYN BUDOWLANYCH NR. 3	发明人
分类号	E21B7/00;E21B7/02;E21B11/04;E21B25/18	主分类号	E21B7/00
代理机构		代理人
主权项
地址

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