OIL RECOVERY FROM TAR SANDS,申请号CAD639050-传众专利搜索

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发明名称	OIL RECOVERY FROM TAR SANDS
摘要
申请公布号	CA639050(A)	申请公布日期	1962.03.27
申请号	CAD639050	申请日期
申请人	SHELL OIL COMPANY	发明人	TODD M. DOSCHER;JOSEPH REISBERG
分类号		主分类号
代理机构		代理人
主权项
地址

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