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发明名称
Means for adjusting the impedance of electromagnetic devices
摘要
申请公布号
US2261323(A)
申请公布日期
1941.11.04
申请号
US19400347734
申请日期
1940.07.26
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
ZIERDT CONRAD H.
分类号
H01F27/245
主分类号
H01F27/245
代理机构
代理人
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地址
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