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发明名称
Schaltungsanordnung fuer Fernsprechanlagen mit Selbstbelastungseinrichtungen an der Teilnehmerstelle
摘要
申请公布号
DE552018(C)
申请公布日期
1932.06.08
申请号
DE1931T038557D
申请日期
1931.03.18
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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