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发明名称
Improvements in methods of detecting surface defects in manufactured articles
摘要
申请公布号
GB709101(A)
申请公布日期
1954.05.19
申请号
GB19500006401
申请日期
1950.03.14
申请人
NORTHROP AIRCRAFT, INC.
发明人
分类号
G01N21/91
主分类号
G01N21/91
代理机构
代理人
主权项
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