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发明名称
INTERFACE CIRCUITS FOR A PCM TIME MULTIPLEX SWITCHING CENTRE
摘要
申请公布号
GB1287204(A)
申请公布日期
1972.08.31
申请号
GB19700018465
申请日期
1970.04.17
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H04Q11/04
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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