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发明名称
Verfahren zur Herstellung von Massekernen
摘要
申请公布号
DE601831(C)
申请公布日期
1934.08.24
申请号
DE1931I043322D
申请日期
1931.12.22
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
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地址
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