Composition of matter,申请号US19390261091-传众专利搜索

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发明名称	Composition of matter
摘要
申请公布号	US2194643(A)	申请公布日期	1940.03.26
申请号	US19390261091	申请日期	1939.03.10
申请人	PETROLITE CORPORATION, LTD.	发明人	GROOTE MELVIN DE
分类号	C10G33/04	主分类号	C10G33/04
代理机构		代理人
主权项
地址

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