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发明名称
Vorrichtung zur Darstellung der wechselseitigen Zuordnung der chemischen Elemente
摘要
申请公布号
DE550795(C)
申请公布日期
1932.05.20
申请号
DED550795D
申请日期
1930.02.20
申请人
DR.-ING. HERBERT HERIBERT
发明人
分类号
G09B23/24
主分类号
G09B23/24
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代理人
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