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发明名称
Wechselschreibstift fuer Blei- und Kugelschreiberminen
摘要
申请公布号
DE909066(C)
申请公布日期
1954.04.12
申请号
DE1951B018040
申请日期
1951.12.05
申请人
DIPL.-ING. HELMUT BROSS
发明人
BROSS DIPL.-ING. HELMUT
分类号
B43K24/10
主分类号
B43K24/10
代理机构
代理人
主权项
地址
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