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发明名称
ULTRASONIC TRANSDUCER
摘要
申请公布号
CA650414(A)
申请公布日期
1962.10.16
申请号
CAD650414
申请日期
申请人
N.V. PHILIPS GLOEILAMPENFABRIEKEN
发明人
CORNELIS M. VAN DER BURGT
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主分类号
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