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经营范围
发明名称
Intercept discriminator
摘要
申请公布号
US2871300(A)
申请公布日期
1959.01.27
申请号
US19530341856
申请日期
1953.03.12
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
HORWITZ HENRY LEOPOLD;HASSER GEORGE LOUIS
分类号
H04Q5/00
主分类号
H04Q5/00
代理机构
代理人
主权项
地址
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