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发明名称
Tuning device
摘要
申请公布号
US2081746(A)
申请公布日期
1937.05.25
申请号
US19340717710
申请日期
1934.03.28
申请人
RADIO PATENTS CORPORATION
发明人
HOLLMANN HANS ERICH
分类号
H03J1/04;H03J3/14
主分类号
H03J1/04
代理机构
代理人
主权项
地址
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