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发明名称
Improvement in variable inductance devices
摘要
申请公布号
GB412382(A)
申请公布日期
1934.06.28
申请号
GB19330012098
申请日期
1933.04.25
申请人
JOHNSON LABORATORIES, INCORPORATED
发明人
分类号
H01F21/06
主分类号
H01F21/06
代理机构
代理人
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