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发明名称
Variable inductance system
摘要
申请公布号
US1904208(A)
申请公布日期
1933.04.18
申请号
US19300495777
申请日期
1930.11.14
申请人
DOW JENNINGS B
发明人
DOW JENNINGS B.
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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