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发明名称
Adjustable inductance coil
摘要
申请公布号
US1753337(A)
申请公布日期
1930.04.08
申请号
US19280291745
申请日期
1928.07.11
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GIVEN FREDERICK J.
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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