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发明名称
ULTRASONIC TRANSDUCER
摘要
申请公布号
JPH01246998(A)
申请公布日期
1989.10.02
申请号
JP19880074963
申请日期
1988.03.29
申请人
FUJI ELECTRIC CO LTD
发明人
YANAGAWA KATSUHIKO
分类号
H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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