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发明名称
Automatic tuning system and apparatus
摘要
申请公布号
US2168326(A)
申请公布日期
1939.08.08
申请号
US19370123453
申请日期
1937.02.01
申请人
COLLINS ARTHUR A
发明人
COLLINS ARTHUR A.
分类号
H03J5/20
主分类号
H03J5/20
代理机构
代理人
主权项
地址
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