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发明名称
Quartz crystal
摘要
申请公布号
US2871192(A)
申请公布日期
1959.01.27
申请号
US19550492006
申请日期
1955.03.03
申请人
CLEVITE CORPORATION
发明人
AUGUSTINE FRANK;SCHWOPE ARTHUR D.
分类号
H03H9/19
主分类号
H03H9/19
代理机构
代理人
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