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经营范围
发明名称
Improvements relating to filters
摘要
申请公布号
GB606042(A)
申请公布日期
1948.08.05
申请号
GB19460000754
申请日期
1946.01.09
申请人
FRAM CORPORATION
发明人
分类号
B01D29/96;B01D35/30
主分类号
B01D29/96
代理机构
代理人
主权项
地址
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