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发明名称
BENAGELBARER BALKEN AUS LEICHTBAUSTOFF O. DGL.
摘要
申请公布号
DE1603970(U)
申请公布日期
1950.03.30
申请号
DE194900D2236U
申请日期
1949.02.22
申请人
RICHARD KOEPPEN
发明人
RICHARD KOEPPEN
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主分类号
代理机构
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