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发明名称
Système de transmission à fréquences porteuses avec compensation des phases
摘要
申请公布号
FR677387(A)
申请公布日期
1930.03.07
申请号
FRD677387
申请日期
1929.06.25
申请人
SIEMENS ET HALSKE AKTIEN-GESELLSCHAFT
发明人
分类号
D06P1/28;H04B3/14
主分类号
D06P1/28
代理机构
代理人
主权项
地址
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