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发明名称
Massekern fuer elektrische Spulen, dessen magnetische Teilchen, vorzugsweise aus einer hochpermeablen Eisennickellegierung, mit einem durch eine chemische Verbindung mitdem magnetischen Material gebildeten isolierenden UEberzug bedeckt sind
摘要
申请公布号
DE502568(C)
申请公布日期
1930.07.12
申请号
DE1928ST43655D
申请日期
1928.01.01
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
分类号
H01F1/24
主分类号
H01F1/24
代理机构
代理人
主权项
地址
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