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发明名称
IMPROVEMENTS RELATING TO ULTRASONIC DEVICES
摘要
申请公布号
GB9106036(D0)
申请公布日期
1991.05.08
申请号
GB19910006036
申请日期
1991.03.21
申请人
RAWSON, FRANCIS F H
发明人
分类号
B06B3/00;B23K20/10
主分类号
B06B3/00
代理机构
代理人
主权项
地址
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