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发明名称
摘要
申请公布号
JPS4970564(U)
申请公布日期
1974.06.19
申请号
JP19720114902U
申请日期
1972.10.02
申请人
发明人
分类号
B01D25/12;(IPC1-7):B01D25/12;C02C1/18
主分类号
B01D25/12
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代理人
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