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发明名称
Fernsprechanlage
摘要
申请公布号
DE889310(C)
申请公布日期
1953.09.10
申请号
DE1936I003263
申请日期
1936.08.26
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION, NEW YORK, N. Y. (V. ST. A.)
发明人
LONDON ARTHUR MACKENZIE SEARLE,
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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