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经营范围
发明名称
Fernmeldesystem
摘要
申请公布号
AT167240(B)
申请公布日期
1950.11.25
申请号
ATD167240
申请日期
1947.11.28
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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