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发明名称
Federndes Merkplättchen für Karteiblätter.
摘要
申请公布号
CH176049(A)
申请公布日期
1935.03.31
申请号
CHD176049
申请日期
1934.06.04
申请人
HABERFELD,ERWIN O.
发明人
O. HABERFELD,ERWIN
分类号
B42F21/10
主分类号
B42F21/10
代理机构
代理人
主权项
地址
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