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发明名称
METHOD FOR PREPARING WATER SOLUBLE POLYMER
摘要
申请公布号
KR1019930007847(B1)
申请公布日期
1993.08.20
申请号
KR1019900020823
申请日期
1990.12.17
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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