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发明名称
RETAINING APPARATUS FOR AN ULTRASONIC COUPLING MEDIUM
摘要
申请公布号
US3431440(A)
申请公布日期
1969.03.04
申请号
USD3431440
申请日期
1966.04.01
申请人
HEWLETT PACKARD CO.
发明人
RICHARD B. OSGOOD
分类号
G01N29/28;G10K11/02;(IPC1-7):H02N7/00;G01N9/24;G01N29/00
主分类号
G01N29/28
代理机构
代理人
主权项
地址
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