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经营范围
发明名称
UEbertragungsanordnung mit mechanischen Filtern
摘要
申请公布号
DE566335(C)
申请公布日期
1932.12.15
申请号
DE1925I026514D
申请日期
1925.08.08
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H03H9/50
主分类号
H03H9/50
代理机构
代理人
主权项
地址
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