PROCESS FOR RECOVERING OIL,申请号CA19892005479-传众专利搜索

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发明名称	PROCESS FOR RECOVERING OIL
摘要
申请公布号	CA2005479(A1)	申请公布日期	1990.06.19
申请号	CA19892005479	申请日期	1989.12.14
申请人	SHELL CANADA LIMITED	发明人	BORCHARDT, JOHN K.;LAU, HON C.
分类号	E21B43/00	主分类号	E21B43/00
代理机构		代理人
主权项
地址

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