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发明名称
CALL TRAFFIC CONTROL
摘要
申请公布号
GB8806625(D0)
申请公布日期
1988.04.20
申请号
GB19880006625
申请日期
1988.03.21
申请人
发明人
分类号
H04M3/36;H04Q3/66
主分类号
H04M3/36
代理机构
代理人
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地址
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