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发明名称
Schaltungsanordnung fuer Fernmeldeanlagen, insbesondere Fernsprechanlagen
摘要
申请公布号
DE689747(C)
申请公布日期
1940.04.04
申请号
DE193501S9789D
申请日期
1935.09.17
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
TOEPFER HERBERT
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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地址
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