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发明名称
Schaltungsanordnung fuer handbediente Vermittlungseinrichtungen fuer Fernaemter des Fernsprechverkehrs
摘要
申请公布号
DE1018928(B)
申请公布日期
1957.11.07
申请号
DE1956M032337
申请日期
1956.11.13
申请人
FRIEDRICH MERK TELEFONBAU AKTIENGESELLSCHAFT
发明人
ROFLER LEONHARD
分类号
H04M3/60
主分类号
H04M3/60
代理机构
代理人
主权项
地址
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