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发明名称
Schaltungsanordnung fuer Fernsprechanlagen
摘要
申请公布号
DE629520(C)
申请公布日期
1936.05.07
申请号
DE1931S098005D
申请日期
1931.04.12
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
HECKENTHALER JAKOB
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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