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发明名称
Ultrasonic machine
摘要
申请公布号
US3027690(A)
申请公布日期
1962.04.03
申请号
US19580775249
申请日期
1958.11.20
申请人
THE SHEFFIELD CORPORATION
发明人
RONEY RICHARD N.
分类号
B24B1/04
主分类号
B24B1/04
代理机构
代理人
主权项
地址
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