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发明名称
PIEZOELECTRIC TRANSDUCER
摘要
申请公布号
US3474267(A)
申请公布日期
1969.10.21
申请号
USD3474267
申请日期
1967.06.23
申请人
NAVY USA
发明人
STEPHEN R. COLBERG
分类号
B06B1/06;B06B1/08;H03H9/125;(IPC1-7):H02N1/00
主分类号
B06B1/06
代理机构
代理人
主权项
地址
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