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发明名称
Radiocircuit
摘要
申请公布号
US1850110(A)
申请公布日期
1932.03.22
申请号
US19270172999
申请日期
1927.03.05
申请人
SAMUEL E. DARBY, JR.
发明人
KAUFMAN WOLFF
分类号
H03F1/08
主分类号
H03F1/08
代理机构
代理人
主权项
地址
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