Appareil de forage pour terrains,申请号FRD1132458-传众专利搜索

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发明名称	Appareil de forage pour terrains
摘要
申请公布号	FR1132458(A)	申请公布日期	1957.03.12
申请号	FRD1132458	申请日期	1955.05.31
申请人	GODFREY L. CABOT, INC.	发明人
分类号	E21B4/12	主分类号	E21B4/12
代理机构		代理人
主权项
地址

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