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经营范围
发明名称
ULTRASONIC INSPECTION SYSTEM FOR WELDS
摘要
申请公布号
US3575044(A)
申请公布日期
1971.04.13
申请号
USD3575044
申请日期
1967.12.11
申请人
NATIONAL RESEARCH DEVELOPMENT CORP.
发明人
HAROLD GIBBS;WALTER JEFFREY LETHBRIDGE
分类号
G01N29/06;(IPC1-7):G01N29/00
主分类号
G01N29/06
代理机构
代理人
主权项
地址
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