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经营范围
发明名称
PCM COMMUNICATION SYSTEM
摘要
申请公布号
US5056087(A)
申请公布日期
1991.10.08
申请号
US19900485995
申请日期
1990.02.26
申请人
GEC PLESSEY TELECOMMUNICATIONS LIMITED
发明人
FERGUSON, STEPHEN P.
分类号
H04J3/00;H04J3/04;H04J3/18
主分类号
H04J3/00
代理机构
代理人
主权项
地址
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