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发明名称
ULTRASONIC WAVE TRANSDUCER
摘要
申请公布号
GB1567277(A)
申请公布日期
1980.05.14
申请号
GB19770031752
申请日期
1977.07.28
申请人
PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES LTD
发明人
分类号
B06B1/06;(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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