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经营范围
发明名称
TELEPHONE PAY STATIONS.
摘要
申请公布号
IE12019(L)
申请公布日期
1931.05.02
申请号
IED12019
申请日期
1930.06.20
申请人
TELEPHON-APPARAT-FABRIK E. ZWIETUSCH AND CO., G.M.B.H.
发明人
分类号
H04M17/02;(IPC1-7):H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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