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发明名称
Isolierte Fernsprechader fuer Tiefseefernmeldekabel
摘要
申请公布号
DE684229(C)
申请公布日期
1939.11.24
申请号
DE1932N034347D
申请日期
1932.10.25
申请人
NORDDEUTSCHE SEEKABELWERKE AKT.-GES.
发明人
STUDT ERNST
分类号
H01B7/14
主分类号
H01B7/14
代理机构
代理人
主权项
地址
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