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发明名称
Sichtvorrichtung fuer feinkoernige Kohlen und sonstige Stoffe
摘要
申请公布号
DE717434(C)
申请公布日期
1942.02.13
申请号
DE1937K148103D
申请日期
1937.10.03
申请人
ERNST KUENZEL
发明人
KUENZEL ERNST
分类号
B03B4/04
主分类号
B03B4/04
代理机构
代理人
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