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经营范围
发明名称
TIME DIVISION EXCHANGE SYSTEM
摘要
申请公布号
JPH03113997(A)
申请公布日期
1991.05.15
申请号
JP19900110043
申请日期
1990.04.27
申请人
HITACHI LTD
发明人
SUZUKI TAHEI;MORITA TAKASHI;SHIRASU HIROTOSHI;KUWABARA HIROSHI;AMADA EIICHI
分类号
H04M7/00;H04Q11/04
主分类号
H04M7/00
代理机构
代理人
主权项
地址
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