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发明名称
High-frequency interstage coupling device
摘要
申请公布号
US1997453(A)
申请公布日期
1935.04.09
申请号
US19340719904
申请日期
1934.04.10
申请人
JOHNSON LABORATORIES, INC.
发明人
CROSSLEY ALFRED;MEINEMA HERBERT E.
分类号
H01F21/06
主分类号
H01F21/06
代理机构
代理人
主权项
地址
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