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发明名称
Schaltungsanordnung zur UEberwachung der Zaehlung in Fernsprechanlagen
摘要
申请公布号
DE952993(C)
申请公布日期
1956.11.22
申请号
DE1954ST41380
申请日期
1954.10.28
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
DREYER HANS;SCHEUNERT ALFRED
分类号
H04M15/10
主分类号
H04M15/10
代理机构
代理人
主权项
地址
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