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发明名称
X-RAY ATTENUATOR
摘要
申请公布号
JPH02102500(A)
申请公布日期
1990.04.16
申请号
JP19880254191
申请日期
1988.10.07
申请人
NEC CORP
发明人
HIROZAWA ICHIRO
分类号
G21K3/00;H05G1/00
主分类号
G21K3/00
代理机构
代理人
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