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经营范围
发明名称
FREMGANGSMAATE FOR AA FJERNE OPPLOEST OKSYGEN FRA ET VANDIG SYSTEM.
摘要
申请公布号
NO894755(D0)
申请公布日期
1989.11.29
申请号
NO19890004755
申请日期
1989.11.29
申请人
PFIZER INC
发明人
MAY, RALPH DOUGLAS
分类号
C02F1/58;C02F1/20;C02F1/28;(IPC1-7):B01D19/00
主分类号
C02F1/58
代理机构
代理人
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