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经营范围
发明名称
Pulse pair detector
摘要
申请公布号
US2861184(A)
申请公布日期
1958.11.18
申请号
US19550498834
申请日期
1955.04.04
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
ALEXANDER BEN;SULLIVAN JOHN F.
分类号
H04L25/49
主分类号
H04L25/49
代理机构
代理人
主权项
地址
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