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发明名称
FREQUENCY STANDARDS
摘要
申请公布号
GB8427378(D0)
申请公布日期
1984.12.05
申请号
GB19840027378
申请日期
1984.10.30
申请人
HELSBY, N C
发明人
分类号
H03L7/26
主分类号
H03L7/26
代理机构
代理人
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