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经营范围
发明名称
Improvements in or relating to ultrasonic devices
摘要
申请公布号
GB894157(A)
申请公布日期
1962.04.18
申请号
GB19590013176
申请日期
1959.04.17
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
B06B1/02
主分类号
B06B1/02
代理机构
代理人
主权项
地址
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