Process for producing vitamin a active esters,申请号US19420467048-传众专利搜索

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发明名称	Process for producing vitamin a active esters
摘要
申请公布号	US2434687(A)	申请公布日期	1948.01.20
申请号	US19420467048	申请日期	1942.11.26
申请人	DISTILLATION PRODUCTS, INC.	发明人	EMBREE NORRIS D.;SHANTZ EDGAR M.
分类号	A61K31/59	主分类号	A61K31/59
代理机构		代理人
主权项
地址

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