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发明名称
Vorrichtung zum Entwaessern von Faserstoffen fuer die Papierherstellung
摘要
申请公布号
DE521504(C)
申请公布日期
1931.04.04
申请号
DE1929P060055D
申请日期
1929.04.10
申请人
FRITZ PFEFFER
发明人
分类号
D21F1/74
主分类号
D21F1/74
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