Lame de trépan de forage,申请号FR19620889716-传众专利搜索

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发明名称	Lame de trépan de forage
摘要
申请公布号	FR1317508(A)	申请公布日期	1963.02.08
申请号	FR19620889716	申请日期	1962.03.01
申请人	JERSEY PRODUCTION RESEARCH COMPANY	发明人
分类号	E21B10/54	主分类号	E21B10/54
代理机构		代理人
主权项
地址

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