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经营范围
发明名称
ELECTRET FILTER
摘要
申请公布号
JPH0899008(A)
申请公布日期
1996.04.16
申请号
JP19940237317
申请日期
1994.09.30
申请人
NITTO DENKO CORP
发明人
HIRATA REIJI;SAEN HAJIME
分类号
B01D39/14;B01D39/16;(IPC1-7):B01D39/14
主分类号
B01D39/14
代理机构
代理人
主权项
地址
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