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发明名称
Improvements in and relating to ultrasonic apparatus
摘要
申请公布号
GB771362(A)
申请公布日期
1957.04.03
申请号
GB19550064854
申请日期
1955.01.05
申请人
KELVIN & HUGHES LIMITED
发明人
HALLIDAY WILLIAM;RANKIN ALEXANDER BRYCE CALDER
分类号
G01N29/24
主分类号
G01N29/24
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代理人
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