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发明名称
摘要
申请公布号
JPS642914(B2)
申请公布日期
1989.01.19
申请号
JP19820187576
申请日期
1982.10.27
申请人
HITACHI LTD
发明人
MYAGAWA TAKENAO
分类号
G21F9/02;G21C13/00;G21D1/00;G21F9/00
主分类号
G21F9/02
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