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发明名称
SCHUTZHUELLEN FUER FILM-NEGATIVE.
摘要
申请公布号
DE1612798(U)
申请公布日期
1950.09.07
申请号
DE195000R0990U
申请日期
1950.04.19
申请人
HELMUT ROTHLEY
发明人
HELMUT ROTHLEY
分类号
主分类号
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