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发明名称
Piezoelectric resonator
摘要
申请公布号
US3401283(A)
申请公布日期
1968.09.10
申请号
US19650448922
申请日期
1965.04.19
申请人
发明人
分类号
H03H9/02;H03H9/17;H03H9/19
主分类号
H03H9/02
代理机构
代理人
主权项
地址
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