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发明名称
Filtre.
摘要
申请公布号
BE606649(A1)
申请公布日期
1962.01.29
申请号
BE19610606649
申请日期
1961.07.28
申请人
BELL TELEPHONE MANUFACTURING COMPANY, SOCIETE ANONYME
发明人
A. FETTWEIS
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主分类号
代理机构
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