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发明名称
Ultrasonic vibratory device
摘要
申请公布号
US2651148(A)
申请公布日期
1953.09.08
申请号
US19490128989
申请日期
1949.11.23
申请人
RAYTHEON MANUFACTURING COMPANY
发明人
CARWILE PRESTON B.
分类号
B06B3/00;B23K20/10
主分类号
B06B3/00
代理机构
代理人
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