Vitamin a ester composition and process of preparing vitamin a ester,申请号US19520269578-传众专利搜索

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发明名称	Vitamin a ester composition and process of preparing vitamin a ester
摘要
申请公布号	US2693435(A)	申请公布日期	1954.11.02
申请号	US19520269578	申请日期	1952.02.01
申请人	CHAS. PFIZER & CO., INC.	发明人	STIEG WILLIAM E.;NIELSEN AXEL T.
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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