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经营范围
发明名称
Vorrichtung zum Anzeigen der Gebuehrenstufe und des Betriebszustandes an Fernsprechstellen, insbesondere an Muenzfernsprechern
摘要
申请公布号
DE673581(C)
申请公布日期
1939.03.28
申请号
DE1935T044851D
申请日期
1935.01.24
申请人
TELEPHON-APPARAT-FABRIK E. ZWIETUSCH & CO. G.M.B.H.
发明人
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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