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发明名称
Frequency-dividing system
摘要
申请公布号
US2221452(A)
申请公布日期
1940.11.12
申请号
US19380245354
申请日期
1938.12.13
申请人
HAZELTINE CORPORATION
发明人
LEWIS HAROLD M.
分类号
H03B19/12;H04N5/067
主分类号
H03B19/12
代理机构
代理人
主权项
地址
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