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发明名称
WECHSELSTROM-MAGNET.
摘要
申请公布号
DE1713830(U)
申请公布日期
1955.12.29
申请号
DE195500H9497U
申请日期
1955.08.26
申请人
FRED HAHN
发明人
FRED HAHN
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主分类号
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