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发明名称
Piezoelectric resonators
摘要
申请公布号
GB907010(A)
申请公布日期
1962.09.26
申请号
GB19590041360
申请日期
1959.12.04
申请人
发明人
分类号
H03H9/02;H03H9/13;H03H9/17;H03H9/56
主分类号
H03H9/02
代理机构
代理人
主权项
地址
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