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发明名称
Automatic telephone systems
摘要
申请公布号
US2719882(A)
申请公布日期
1955.10.04
申请号
US19530391875
申请日期
1953.11.13
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
HENQUET ANDRE JEAN;GAUGAIN EMILE PAUL MAURICE
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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