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发明名称
Anordnung zum Anbieten hochwertiger Verbindungen in Fernsprechanlagen
摘要
申请公布号
DE851508(C)
申请公布日期
1952.10.06
申请号
DE1948P011556D
申请日期
1948.10.02
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
TOEPFER HERBERT;ETZEL FRANZ
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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地址
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