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发明名称
BLATT ZUM AUFBRINGEN VON BRIEFMARKEN FUER BRIEFMARKEN-SAMMLUNGEN.
摘要
申请公布号
DE1839931(U)
申请公布日期
1961.10.26
申请号
DE196100B6081U
申请日期
1961.08.04
申请人
FRITZ BACKOFEN
发明人
FRITZ BACKOFEN
分类号
主分类号
代理机构
代理人
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