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发明名称
Device for non-destructive testing of materials by means of supersonic pulses
摘要
申请公布号
US2838930(A)
申请公布日期
1958.06.17
申请号
US19550546204
申请日期
1955.11.10
申请人
SPERRY PRODUCTS INC.
发明人
KRAUTKRAMER JOSEF;KRAUTKRAMER HERBERT
分类号
G01N29/30
主分类号
G01N29/30
代理机构
代理人
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地址
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