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发明名称
RADIOGRAPHIC EXPOSURE CONTROL SCREEN FOR THE DEFINITION OF DETAIL OF BOTH HARD AND SOFT SUBSTANCE
摘要
申请公布号
US3575599(A)
申请公布日期
1971.04.20
申请号
USD3575599
申请日期
1969.03.06
申请人
GEORG S. MITTELSTAEDT
发明人
GEORG S. MITTELSTAEDT
分类号
G21K4/00;(IPC1-7):H01J1/62
主分类号
G21K4/00
代理机构
代理人
主权项
地址
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