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发明名称
Perfectionnements apportés aux diaphragmes pour tubes de roentgen
摘要
申请公布号
FR731018(A)
申请公布日期
1932.08.27
申请号
FRD731018
申请日期
1932.02.04
申请人
发明人
MANNL RUDOLF
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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