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发明名称
Radioactive source comprising a sheet article containing a layer of small discrete radioactive beads
摘要
申请公布号
US3376422(A)
申请公布日期
1968.04.02
申请号
US19640382842
申请日期
1964.07.15
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
HAES DONALD L.
分类号
G21G4/06
主分类号
G21G4/06
代理机构
代理人
主权项
地址
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