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发明名称
Signaling system
摘要
申请公布号
US3114894(A)
申请公布日期
1963.12.17
申请号
US19590849980
申请日期
1959.10.30
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
JR. AUGUST PHILIP ARNETH,
分类号
G01R23/09;H04L1/00
主分类号
G01R23/09
代理机构
代理人
主权项
地址
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