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发明名称
Improvements in filters
摘要
申请公布号
GB914523(A)
申请公布日期
1963.01.02
申请号
GB19590023919
申请日期
1959.07.13
申请人
STANLEY AUGUSTUS HALLETT
发明人
分类号
B01D25/00;B01D27/00;B01D35/00
主分类号
B01D25/00
代理机构
代理人
主权项
地址
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