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发明名称
Schaltungsanordnung fuer Fernsprechanlagen
摘要
申请公布号
DE583068(C)
申请公布日期
1933.08.28
申请号
DE1931T038565D
申请日期
1931.03.19
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
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地址
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