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发明名称
SURFACE PACKAGE TYPE PIEZOELECTRIC VIBRATOR
摘要
申请公布号
JPH02226906(A)
申请公布日期
1990.09.10
申请号
JP19890047854
申请日期
1989.02.28
申请人
NIPPON DEMPA KOGYO CO LTD
发明人
KONNO YOSHIMI
分类号
H03H9/13
主分类号
H03H9/13
代理机构
代理人
主权项
地址
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