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发明名称
CRYSTAL RESONATOR FORMED BY ETCHING AND PRODUCTION THEREOF
摘要
申请公布号
JPH04208705(A)
申请公布日期
1992.07.30
申请号
JP19900212320
申请日期
1990.08.10
申请人
SEIKO ELECTRONIC COMPONENTS LTD
发明人
MASUYAMA KENICHI
分类号
H03H3/02
主分类号
H03H3/02
代理机构
代理人
主权项
地址
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