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发明名称
Call allotter
摘要
申请公布号
US2883471(A)
申请公布日期
1959.04.21
申请号
US19540463101
申请日期
1954.10.19
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GERMANTON CHARLES E.
分类号
H04M3/523;H04M15/38
主分类号
H04M3/523
代理机构
代理人
主权项
地址
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