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发明名称
Filtre électrique
摘要
申请公布号
FR856504(A)
申请公布日期
1940.06.17
申请号
FRD856504
申请日期
1939.03.01
申请人
发明人
PORON RENE EMMANUEL
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
主权项
地址
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