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发明名称
Wahleinrichtung an einer Fernsprechteilnehmerstelle für Haus- und Amtsverkehr.
摘要
申请公布号
CH191686(A)
申请公布日期
1937.06.30
申请号
CHD191686
申请日期
1935.12.23
申请人
HASLER A. G. WERKE FUER TELEPHONIE & PRAEZISIONSMECHANIK
发明人
HASLER A. G. WERKE FUER TELEPHONIE & PRAEZISIONSMECHANIK
分类号
H04M1/52
主分类号
H04M1/52
代理机构
代理人
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