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发明名称
Kugelschreiber mit zwei Schreibduesen
摘要
申请公布号
DE802229(C)
申请公布日期
1951.02.05
申请号
DE1949P046649
申请日期
1949.06.23
申请人
BAUER ERICH
发明人
BAUER ERICH
分类号
B43K27/12
主分类号
B43K27/12
代理机构
代理人
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地址
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