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发明名称
Verfahren und Vorrichtung zum Perforieren von Blattmaterial und nach diesem Verfahren perforiertes Blattmaterial.
摘要
申请公布号
CH251779(A)
申请公布日期
1947.11.15
申请号
CHD251779
申请日期
1946.07.11
申请人
HOFGAARD,ROLF
发明人
HOFGAARD,ROLF
分类号
B26F1/28;D03C17/00;H04L13/06
主分类号
B26F1/28
代理机构
代理人
主权项
地址
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