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经营范围
发明名称
Fernsprechapparat
摘要
申请公布号
DE888868(C)
申请公布日期
1953.09.07
申请号
DE1938I003204D
申请日期
1938.12.17
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
MCLARN ERNEST STEWART
分类号
H04M1/02
主分类号
H04M1/02
代理机构
代理人
主权项
地址
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