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申请公布号
JPH03156816(A)
申请公布日期
1991.07.04
申请号
JP19890295061
申请日期
1989.11.15
申请人
HITACHI LTD
发明人
SAKAMAKI TSUTOMU
分类号
H01H13/00
主分类号
H01H13/00
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