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发明名称
Lehr- und Spielgerät, insbesondere für den Chemie-Unterricht
摘要
申请公布号
AT175078(B)
申请公布日期
1953.06.10
申请号
ATD175078
申请日期
1950.08.11
申请人
ING. ODO WENZEL
发明人
ING. ODO WENZEL
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主分类号
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