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发明名称
Schaltungsanordnung fuer Nummernstromstossempfaenger mit freier Wahl in Fernsprechanlagen
摘要
申请公布号
DE677262(C)
申请公布日期
1939.06.22
申请号
DE1931S099020D
申请日期
1931.06.03
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
LANGER MAX
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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