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发明名称
Improvements relating to ultrasonic delay lines
摘要
申请公布号
GB898288(A)
申请公布日期
1962.06.06
申请号
GB19600019100
申请日期
1960.05.30
申请人
A. C. COSSOR LIMITED
发明人
HAMMOND VIVIAN JOSEPH
分类号
H03H9/36
主分类号
H03H9/36
代理机构
代理人
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