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经营范围
发明名称
HOURGLASS EXTRACTION EQUIPMENT
摘要
申请公布号
GB8822404(D0)
申请公布日期
1988.10.26
申请号
GB19880022404
申请日期
1988.09.23
申请人
BROWN, R H
发明人
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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