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发明名称
RADIATION SHIELDING BLOCK
摘要
申请公布号
JPH01189597(A)
申请公布日期
1989.07.28
申请号
JP19880012493
申请日期
1988.01.25
申请人
NIPPON TELEGR & TELEPH CORP <NTT>;TAISEI CORP
发明人
ISHIDA AKIO;YANAI TADASHI;TAKEI NOBORU;ICHIKAWA SHUZO
分类号
G21F1/12;G21F3/04
主分类号
G21F1/12
代理机构
代理人
主权项
地址
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