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发明名称
SCHUTZHUELSE FUER BLEISTIFTE MIT AUSWECHSELBARER GUMMIMINE.
摘要
申请公布号
DE1602174(U)
申请公布日期
1950.02.23
申请号
DE194900D9816U
申请日期
1949.01.08
申请人
JOSEF TRUMER
发明人
JOSEF TRUMER
分类号
主分类号
代理机构
代理人
主权项
地址
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