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发明名称
Vorrichtung zum wechselweisen Freilegen von hintereinander hängenden Blättern, wie Zeichnungen, Karten, Plänen od. dgl.
摘要
申请公布号
AT135827(B)
申请公布日期
1933.12.11
申请号
ATD135827
申请日期
1932.10.10
申请人
HEINRICH QUANTSCHNIG
发明人
HEINRICH QUANTSCHNIG
分类号
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