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经营范围
发明名称
TELEPHONE SYSTEMS.
摘要
申请公布号
IE16748(L)
申请公布日期
1944.02.06
申请号
IE19430000144
申请日期
1943.05.27
申请人
AUTOMATIC ELECTRIC LABORATORIES INC. (FORMERLY ASSOCIATED;ELECTRIC LABORATORIES INC.)
发明人
分类号
H04M15/06;H04Q3/70;(IPC1-7):H04Q3/70
主分类号
H04M15/06
代理机构
代理人
主权项
地址
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