ISOLATING BITUMEN FROM EARTH FORMATIONS,申请号YU19780002812-传众专利搜索

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发明名称	ISOLATING BITUMEN FROM EARTH FORMATIONS
摘要
申请公布号	YU281278(A)	申请公布日期	1982.06.30
申请号	YU19780002812	申请日期	1978.11.28
申请人	TEXACO CANADA INC..	发明人	REDFOD D.A.;CRAM P.J.
分类号	E21B43/00;(IPC1-7):E21B43/00	主分类号	E21B43/00
代理机构		代理人
主权项
地址

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