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发明名称
Improvements in radio frequency oscillators
摘要
申请公布号
GB603726(A)
申请公布日期
1948.06.22
申请号
GB19450023519
申请日期
1945.09.12
申请人
JOHN CHARLES BELCHER
发明人
分类号
H03L7/20
主分类号
H03L7/20
代理机构
代理人
主权项
地址
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