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经营范围
发明名称
MULTIPLEX SYSTEM
摘要
申请公布号
JPH03283735(A)
申请公布日期
1991.12.13
申请号
JP19900081223
申请日期
1990.03.30
申请人
HITACHI LTD
发明人
ITO RYOICHI
分类号
H04J3/00;H04J3/22
主分类号
H04J3/00
代理机构
代理人
主权项
地址
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