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发明名称
Aerodynamische Verkleidung fuer Gruben-Ausbau-Elemente
摘要
申请公布号
DE1038507(B)
申请公布日期
1958.09.11
申请号
DE1957H029896
申请日期
1957.04.13
申请人
HEINZ HOELTER;JOSEF PETERS;ARTHUR KLAESENER
发明人
HOELTER HEINZ;PETERS JOSEF;KLAESENER ARTHUR
分类号
E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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