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发明名称
METHOD OF MANUFACTURE OF A SPECIFIC FOR SEWAGE PURIFICATION
摘要
申请公布号
PL150695(B1)
申请公布日期
1990.06.30
申请号
PL19870268445
申请日期
1987.10.27
申请人
发明人
分类号
C02F;C02F1/26;(IPC1-7):C02F1/26
主分类号
C02F
代理机构
代理人
主权项
地址
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