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发明名称
Montage pour liaisons de télécommunication avec appel sélectif entre appareils à courants porteurs avec utilisation d'organes enregistreurs
摘要
申请公布号
FR52936(E)
申请公布日期
1945.08.24
申请号
FRD52936
申请日期
1943.05.07
申请人
FIDES GESELLSCHAFT FUER DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN MIT BESCHRANKTER HAFTUNG
发明人
分类号
H04B3/54;H04J1/14
主分类号
H04B3/54
代理机构
代理人
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