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发明名称
HIT PROTECTION SYSTEM
摘要
申请公布号
JPH01114227(A)
申请公布日期
1989.05.02
申请号
JP19870270085
申请日期
1987.10.28
申请人
HITACHI LTD
发明人
MASUKAWA HIROSHI
分类号
H04L1/00;H04M3/22
主分类号
H04L1/00
代理机构
代理人
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