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发明名称
Electrical automatic tuning unit
摘要
申请公布号
US2726326(A)
申请公布日期
1955.12.06
申请号
US19490095697
申请日期
1949.05.27
申请人
SYLVANIA ELECTRIC PRODUCTS, INC.
发明人
WINFIELD WILLIAM S.
分类号
H03J7/30
主分类号
H03J7/30
代理机构
代理人
主权项
地址
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