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经营范围
发明名称
SIEVING
摘要
申请公布号
GB2021442(B)
申请公布日期
1982.09.02
申请号
GB19790017749
申请日期
1979.05.22
申请人
POZZOLANIC LTD
发明人
分类号
B07B4/08;(IPC1-7):B07B1/04
主分类号
B07B4/08
代理机构
代理人
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地址
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