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发明名称
Mehrfarbenschreibstift mit unmittelbar aneinanderliegenden Minen von jeweils verschiedener Farbe
摘要
申请公布号
DE649579(C)
申请公布日期
1937.08.27
申请号
DE1935H142675D
申请日期
1935.02.07
申请人
HANS HAAG
发明人
分类号
B43K21/00;B43K27/04
主分类号
B43K21/00
代理机构
代理人
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地址
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