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经营范围
发明名称
Improvements relating to the transmission of ultrasonic energy
摘要
申请公布号
GB9922184(D0)
申请公布日期
1999.11.17
申请号
GB19990022184
申请日期
1999.09.21
申请人
SOUND PIPE LIMITED
发明人
分类号
主分类号
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