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发明名称
THE PREPARING METHOD FOR 2-HYDROXYPROPYLTRIMETHYL AMMONIUM CHLORIDE CHITOSAN O-2'-
摘要
申请公布号
HK1121769(A1)
申请公布日期
2012.07.20
申请号
HK20090101835
申请日期
2009.02.26
申请人
发明人
分类号
C08B
主分类号
C08B
代理机构
代理人
主权项
地址
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