Deasphalting with propane and butane,申请号US19520293114-传众专利搜索

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发明名称	Deasphalting with propane and butane
摘要
申请公布号	US2729589(A)	申请公布日期	1956.01.03
申请号	US19520293114	申请日期	1952.06.12
申请人	ESSO RESEARCH AND ENGINEERING COMPANY	发明人	WAGHORNE ROBERT H.;LEARNER CHARLES F.
分类号	C10G21/00	主分类号	C10G21/00
代理机构		代理人
主权项
地址

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