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发明名称
Schaltungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen
摘要
申请公布号
DE896371(C)
申请公布日期
1953.11.12
申请号
DE1950S001256
申请日期
1950.01.10
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
DREYER HANS
分类号
H04M3/62
主分类号
H04M3/62
代理机构
代理人
主权项
地址
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