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发明名称
Automatic telephone systems provided with party lines
摘要
申请公布号
US2751434(A)
申请公布日期
1956.06.19
申请号
US19530392892
申请日期
1953.11.18
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
LOMAX CLARENCE E.
分类号
H04Q5/02
主分类号
H04Q5/02
代理机构
代理人
主权项
地址
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