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经营范围
发明名称
LONGITUDINAL CRYSTAL RESONATOR
摘要
申请公布号
JPH02260710(A)
申请公布日期
1990.10.23
申请号
JP19890080825
申请日期
1989.03.30
申请人
SEIKO ELECTRONIC COMPONENTS LTD
发明人
KAWASHIMA HIROFUMI
分类号
H03H9/19
主分类号
H03H9/19
代理机构
代理人
主权项
地址
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