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发明名称
ACOUSTIC TRANSDUCER
摘要
申请公布号
EP0225798(A3)
申请公布日期
1989.01.11
申请号
EP19860309520
申请日期
1986.12.05
申请人
FOCAS LIMITED
发明人
PENNECK, RICHARD JOHN;BARNETT, PETER NICHOLAS;FOX, DAVID RICHARD;BOOTH, MICHAEL CHARLES;ATKINSON, EDWARD BROWELL
分类号
H04R17/00;G01H11/08;G01V1/20;H04R1/44;(IPC1-7):G01H11/08
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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