PROCESS FOR DEASPHALTING PETROLEUM OILS,申请号CAD484759-传众专利搜索

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发明名称	PROCESS FOR DEASPHALTING PETROLEUM OILS
摘要
申请公布号	CA484759(A)	申请公布日期	1952.07.08
申请号	CAD484759	申请日期
申请人	STANDARD OIL DEVELOPMENT COMPANY	发明人	EARL E. WILLAUER
分类号		主分类号
代理机构		代理人
主权项
地址

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