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发明名称
Multi-line telephone station
摘要
申请公布号
US3114801(A)
申请公布日期
1963.12.17
申请号
US19590820400
申请日期
1959.06.15
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
KIRKHAM ROBERT C.
分类号
H04M3/58
主分类号
H04M3/58
代理机构
代理人
主权项
地址
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