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发明名称
PIEZOELECTRIC TRANSDUCERS
摘要
申请公布号
GB1513530(A)
申请公布日期
1978.06.07
申请号
GB19760007726
申请日期
1976.02.26
申请人
FRANCE MINISTER OF ARMED FORCES
发明人
分类号
B06B1/06;H04R17/10;(IPC1-7):H04R17/00
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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