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发明名称
Verfahren zum geheimen Signalisieren mit einem intermittierenden Lichtstrom
摘要
申请公布号
DE679967(C)
申请公布日期
1939.08.18
申请号
DE1931S097428D
申请日期
1931.03.17
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
分类号
H04B10/00
主分类号
H04B10/00
代理机构
代理人
主权项
地址
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