Method of producing lubricating oils,申请号US19290344605-传众专利搜索

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发明名称	Method of producing lubricating oils
摘要
申请公布号	US1803941(A)	申请公布日期	1931.05.05
申请号	US19290344605	申请日期	1929.03.05
申请人	TEXAS PACIFIC COAL & OIL CO.	发明人	LEDERER ERWIN R.
分类号	C10G17/06	主分类号	C10G17/06
代理机构		代理人
主权项
地址

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