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发明名称
Einhandbedienung für Kalkulationsmaschinen
摘要
申请公布号
AT177943(B)
申请公布日期
1954.03.25
申请号
ATD177943
申请日期
1953.02.25
申请人
LEOPOLD JAHN;JOSEF ZITZMANN
发明人
LEOPOLD JAHN;JOSEF ZITZMANN
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主分类号
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