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发明名称
摘要
申请公布号
DE3113332(C2)
申请公布日期
1988.08.11
申请号
DE19813113332
申请日期
1981.04.02
申请人
HITACHI, LTD., TOKIO/TOKYO, JP
发明人
YASUMOTO, SEIICHI;FUSHIMI, HITOSHI, HITACHI, IBARAKI, JP;IDE, JUSHI, MITO, IBARAKI, JP;OKADA, MASAKAZU, HITACHI, IBARAKI, JP
分类号
H04L12/423;(IPC1-7):H04L25/02;H04L11/00
主分类号
H04L12/423
代理机构
代理人
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