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发明名称
Ultrasonic transmission testing method
摘要
申请公布号
US2912853(A)
申请公布日期
1959.11.17
申请号
US19550502038
申请日期
1955.04.18
申请人
GENERAL MOTORS CORPORATION
发明人
HANYSZ EUGENE A.
分类号
G01N29/04;G01N29/07;G01N29/24;G03B42/06
主分类号
G01N29/04
代理机构
代理人
主权项
地址
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