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发明名称
LOOP TYPE COMMUNICATION SYSTEM
摘要
申请公布号
JPH02226839(A)
申请公布日期
1990.09.10
申请号
JP19890047121
申请日期
1989.02.28
申请人
TOSHIBA CORP
发明人
KARASAWA HIROFUMI
分类号
H04L12/42
主分类号
H04L12/42
代理机构
代理人
主权项
地址
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