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发明名称
Schaltungsanordnung für Fernsprechanlagen mit an einer gemeinsamen Leitung liegenden, wahlweise anrufbaren Abzweigstellen.
摘要
申请公布号
CH171186(A)
申请公布日期
1934.08.15
申请号
CHD171186
申请日期
1933.06.19
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
AKTIENGESELLSCHAFT SIEMENS & HALSKE
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