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发明名称
Crystal oscillator
摘要
申请公布号
US2656467(A)
申请公布日期
1953.10.20
申请号
US19500180574
申请日期
1950.08.21
申请人
NORTH AMERICAN AVIATION, INC.
发明人
CAMPBELL DAVID H.
分类号
H03B5/34
主分类号
H03B5/34
代理机构
代理人
主权项
地址
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