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发明名称
Aktenhuelle aus transparentem Werkstoff
摘要
申请公布号
DE924268(C)
申请公布日期
1955.02.28
申请号
DE1951V003905
申请日期
1951.11.07
申请人
VOLK ALFRED DR.
发明人
VOLK ALFRED DR.
分类号
B42F7/02
主分类号
B42F7/02
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代理人
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