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发明名称
Carrier signalling system
摘要
申请公布号
US3060269(A)
申请公布日期
1962.10.23
申请号
US19590846504
申请日期
1959.10.14
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
STACK BOGDAN ROMAN
分类号
H01J1/14;H04Q1/442
主分类号
H01J1/14
代理机构
代理人
主权项
地址
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