Core taker devices,申请号US19600013945-传众专利搜索

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发明名称	Core taker devices
摘要
申请公布号	US3072202(A)	申请公布日期	1963.01.08
申请号	US19600013945	申请日期	1960.03.09
申请人	SCHLUMBERGER WELL SURVEYING CORPORATION	发明人	BRIEGER EMMET F.
分类号	E21B49/04	主分类号	E21B49/04
代理机构		代理人
主权项
地址

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