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公开(公告)号:US3332506A
公开(公告)日:1967-07-25
申请号:US46973665
申请日:1965-07-06
Applicant: NAT RES DEV
Inventor: GEOFFREY BRADFIELD
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2.Apparatus for examining materials by ultrasonic shear vibration 失效
Title translation: 超声波剪切振动检查材料的装置公开(公告)号:US2685041A
公开(公告)日:1954-07-27
申请号:US25593951
申请日:1951-11-13
Applicant: NAT RES DEV
Inventor: GEOFFREY BRADFIELD
IPC: G01N29/28
CPC classification number: G01N29/28
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公开(公告)号:US2716708A
公开(公告)日:1955-08-30
申请号:US25593851
申请日:1951-11-13
Applicant: NAT RES DEV
Inventor: GEOFFREY BRADFIELD
IPC: G10K11/32
CPC classification number: G10K11/32
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