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发明名称
Ceramic electromechanical transducer
摘要
申请公布号
US2596494(A)
申请公布日期
1952.05.13
申请号
US19480032617
申请日期
1948.06.12
申请人
THE BRUSH DEVELOPMENT COMPANY
发明人
LYNCH THOMAS E.
分类号
H04R17/04
主分类号
H04R17/04
代理机构
代理人
主权项
地址
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