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发明名称
COMMUNICATIONS NETWORK
摘要
申请公布号
GB8718701(D0)
申请公布日期
1987.09.16
申请号
GB19870018701
申请日期
1987.08.07
申请人
DICTAPHONE CORPORATION
发明人
分类号
H04M3/42;H04M11/10
主分类号
H04M3/42
代理机构
代理人
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地址
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