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发明名称
Inter-communication system
摘要
申请公布号
US2896021(A)
申请公布日期
1959.07.21
申请号
US19540409104
申请日期
1954.02.09
申请人
THE STANDARD ELECTRIC TIME COMPANY
发明人
PHILIPPS LOUIS E.
分类号
H04M11/02
主分类号
H04M11/02
代理机构
代理人
主权项
地址
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