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经营范围
发明名称
BACKFLUSHING FILTER
摘要
申请公布号
CA897071(A)
申请公布日期
1972.04.04
申请号
CAD897071
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
WILLIAM FREELAND
分类号
B01D21/00;B01D29/05;B01D35/16;(IPC1-7):B01D21/00
主分类号
B01D21/00
代理机构
代理人
主权项
地址
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