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发明名称
Ultrasonic transducers
摘要
申请公布号
GB2020946(A)
申请公布日期
1979.11.21
申请号
GB19790021805
申请日期
1979.06.22
申请人
UNITED KINGDOM ATOMIC ENERGY AUTHORITY
发明人
分类号
H04R17/00;(IPC1-7):H04R17/00
主分类号
H04R17/00
代理机构
代理人
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地址
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