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经营范围
发明名称
Improvements in or relating to devices for transmitting ultrasonic power into a workpiece
摘要
申请公布号
GB713567(A)
申请公布日期
1954.08.11
申请号
GB19520002488
申请日期
1952.01.30
申请人
SPERRY PRODUCTS, INC.
发明人
分类号
G01B17/02
主分类号
G01B17/02
代理机构
代理人
主权项
地址
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