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发明名称
SWITCHING SYSTEM FOR CIRCUIT CORRESPONDING PART OF COMMUNICATION CONTROL UN IT
摘要
申请公布号
JPS5394841(A)
申请公布日期
1978.08.19
申请号
JP19770009528
申请日期
1977.01.31
申请人
HITACHI LTD
发明人
HASHIMOTO TOYOKAZU
分类号
H04B1/74;G06F3/00;G06F13/00;H04B3/00;H04B17/00
主分类号
H04B1/74
代理机构
代理人
主权项
地址
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