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发明名称
Hourglass extraction equipment
摘要
申请公布号
GB2223186(A)
申请公布日期
1990.04.04
申请号
GB19890011357
申请日期
1989.05.17
申请人
RONALD HERBERT * BROWN
发明人
RONALD HERBERT * BROWN
分类号
B01D11/02
主分类号
B01D11/02
代理机构
代理人
主权项
地址
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