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发明名称
Auto-selecting cross-bar telephone system
摘要
申请公布号
GB762840(A)
申请公布日期
1956.12.05
申请号
GB19540035842
申请日期
1954.12.10
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
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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