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发明名称
Mit Bleistift kombinierter Füllfederhalter.
摘要
申请公布号
CH145719(A)
申请公布日期
1931.03.15
申请号
CHD145719
申请日期
1929.06.12
申请人
LANGEN,HERMANN,DR.
发明人
LANGEN,HERMANN,DR.
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