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发明名称
BUCH- UND HEFTSCHUTZ AUS KUNSTSTOFFEN ALLER ART FUER BUECHER UND HEFTE ALLER ART.
摘要
申请公布号
DE1622101(U)
申请公布日期
1951.04.12
申请号
DE195100K4382U
申请日期
1951.02.21
申请人
WALTER KOENIG
发明人
WALTER KOENIG
分类号
主分类号
代理机构
代理人
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