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发明名称
Monitoring indication for communication system
摘要
申请公布号
US2881250(A)
申请公布日期
1959.04.07
申请号
US19560620091
申请日期
1956.11.02
申请人
GENERAL DYNAMICS CORPORATION
发明人
BLOW ANGUS W.;CLARK GEORGE H.
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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