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发明名称
Process of obtaining highly purified vitamin a
摘要
申请公布号
US2111049(A)
申请公布日期
1938.03.15
申请号
US19340714843
申请日期
1934.03.09
申请人
PARKE, DAVIS & COMPANY
发明人
HOLMES HARRY N.
分类号
A61K31/59
主分类号
A61K31/59
代理机构
代理人
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地址
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