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发明名称
Méthode et appareil pour le test des rails au moyen des ultra-sons
摘要
申请公布号
FR1389012(A)
申请公布日期
1965.02.12
申请号
FR19640959986
申请日期
1964.01.10
申请人
CHEMETRON CORPORATION
发明人
分类号
G01N29/06;G01N29/07
主分类号
G01N29/06
代理机构
代理人
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