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发明名称
Zahlautomat fuer Teilnehmerstationen in Fernsprechanlagen
摘要
申请公布号
DE572271(C)
申请公布日期
1933.03.16
申请号
DE1926S074552D
申请日期
1926.05.13
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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