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发明名称
ULTRASONIC TRANSMITTER FOR CONSTRUCTION FIELD
摘要
申请公布号
JPH02193089(A)
申请公布日期
1990.07.30
申请号
JP19890013464
申请日期
1989.01.23
申请人
EFUPURE KK
发明人
OKINAGA HIROMITSU
分类号
E02F9/24;G01S7/52;G01S7/521;H04R1/34
主分类号
E02F9/24
代理机构
代理人
主权项
地址
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