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经营范围
发明名称
Filtre d'ondes sélectif
摘要
申请公布号
FR1102055(A)
申请公布日期
1955.10.17
申请号
FRD1102055
申请日期
1947.04.24
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
CLARK GILBERT RANDOLPH
分类号
H03H19/00
主分类号
H03H19/00
代理机构
代理人
主权项
地址
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