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发明名称
Method of and apparatus for cleaning by ultrasonic waves
摘要
申请公布号
US2468550(A)
申请公布日期
1949.04.26
申请号
US19440560685
申请日期
1944.10.27
申请人
MOTOROLA, INC.
发明人
FRUTH HAL F.
分类号
D06F19/00;D06M10/02
主分类号
D06F19/00
代理机构
代理人
主权项
地址
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