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发明名称
Method and apparatus for the manufacture of x-ray grids and kindred devices
摘要
申请公布号
US2288972(A)
申请公布日期
1942.07.07
申请号
US19380189422
申请日期
1938.02.08
申请人
THE RICHARDSON COMPANY
发明人
MILLENAAR RICHARD
分类号
G21K1/02
主分类号
G21K1/02
代理机构
代理人
主权项
地址
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