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发明名称
Vorrichtung zur Nachrichtenübermittlung mittelst modulierter Lichtstrahlen.
摘要
申请公布号
CH172890(A)
申请公布日期
1934.10.31
申请号
CHD172890
申请日期
1933.12.23
申请人
SIEMENS APPARATE UND MASCHINEN GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
SIEMENS APPARATE UND MASCHINEN GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
分类号
主分类号
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