Improvements in or relating to lubricating oils,申请号GB19380032711-传众专利搜索

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发明名称	Improvements in or relating to lubricating oils
摘要
申请公布号	GB521203(A)	申请公布日期	1940.05.15
申请号	GB19380032711	申请日期	1938.11.10
申请人	SOCONY-VACUUM OIL COMPANY	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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