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发明名称
Crystal beat-frequency oscillator
摘要
申请公布号
US2448188(A)
申请公布日期
1948.08.31
申请号
US19450605885
申请日期
1945.07.19
申请人
MONTFORD MORRISON
发明人
MORRISON MONTFORD
分类号
H03B5/34;H03B21/01
主分类号
H03B5/34
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代理人
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