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发明名称
(A) ;METHOD AND DEVICE FOR MEASURING MATERIAL PROPERTY BY ULTRASONIC WAVE
摘要
申请公布号
JPS57179745(U)
申请公布日期
1982.11.15
申请号
JP19810063804U
申请日期
1981.04.30
申请人
发明人
分类号
G11B27/00;G06F3/06;G11B15/66;G11B15/67;G11B27/34;(IPC1-7):G06F13/04
主分类号
G11B27/00
代理机构
代理人
主权项
地址
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