A TRANSMITTER DEVICE WITH TWO INSULATING COUPLINGS FOR USE IN A BOREHOLE,申请号GB19930021250-传众专利搜索

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发明名称	A TRANSMITTER DEVICE WITH TWO INSULATING COUPLINGS FOR USE IN A BOREHOLE
摘要
申请公布号	GB9321250(D0)	申请公布日期	1993.12.01
申请号	GB19930021250	申请日期	1993.10.14
申请人	SCHLUMBERGER LIMITED	发明人
分类号	E21B47/12;G01V3/34;H01Q1/04;H04B13/02	主分类号	E21B47/12
代理机构		代理人
主权项
地址

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