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发明名称
摘要
申请公布号
JPH0375827(U)
申请公布日期
1991.07.30
申请号
JP19890137223U
申请日期
1989.11.27
申请人
发明人
分类号
B01F7/28;C02F11/00;(IPC1-7):B01F7/28
主分类号
B01F7/28
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代理人
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