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发明名称
Improved method of detecting flaws by fluid penetration
摘要
申请公布号
GB822361(A)
申请公布日期
1959.10.21
申请号
GB19560024833
申请日期
1956.08.14
申请人
SWITZER BROTHERS, INC.
发明人
BETZ CARL EGMONT
分类号
G01N21/91
主分类号
G01N21/91
代理机构
代理人
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地址
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