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发明名称
Improvements in filtering apparatus
摘要
申请公布号
GB484056(A)
申请公布日期
1938.04.29
申请号
GB19370023314
申请日期
1937.08.25
申请人
SOCIETE INDUSTRIELLE DES TELEPHONES (CONSTRUCTIONS ELECTRIQUES, CAOUTCHOUC, CABLES)
发明人
分类号
A62B23/00
主分类号
A62B23/00
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代理人
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