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发明名称
Selector switch for automatic telephone systems
摘要
申请公布号
US2529409(A)
申请公布日期
1950.11.07
申请号
US19460692883
申请日期
1946.08.24
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
NEWSTEDT HARRY N.
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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