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发明名称
Relaisschaltung, insbesondere fuer Fernsprechanlagen
摘要
申请公布号
DE569924(C)
申请公布日期
1933.02.09
申请号
DE1926S074038D
申请日期
1926.04.02
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
PREUSH ALEXANDER BRUNO
分类号
H04M3/12
主分类号
H04M3/12
代理机构
代理人
主权项
地址
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