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发明名称
Tuning device
摘要
申请公布号
US2260877(A)
申请公布日期
1941.10.28
申请号
US19390281203
申请日期
1939.06.26
申请人
PAUL WARE
发明人
WARE PAUL
分类号
H01F21/00
主分类号
H01F21/00
代理机构
代理人
主权项
地址
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