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经营范围
发明名称
SAW RESONATOR
摘要
申请公布号
JPH0322703(A)
申请公布日期
1991.01.31
申请号
JP19890157133
申请日期
1989.06.20
申请人
SEIKO EPSON CORP
发明人
TAKAGI MICHIAKI
分类号
H03H9/25
主分类号
H03H9/25
代理机构
代理人
主权项
地址
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