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经营范围
发明名称
Automatic tuning control
摘要
申请公布号
US2609490(A)
申请公布日期
1952.09.02
申请号
US19460639652
申请日期
1946.01.07
申请人
HOLLYWOOD JOHN M
发明人
HOLLYWOOD JOHN M.
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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