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发明名称
Schraegtreppe zur Foerderung von Kohle und Bergen
摘要
申请公布号
DE1154779(B)
申请公布日期
1963.09.26
申请号
DE1959H035722
申请日期
1959.02.25
申请人
HEINZ HOELTER;WILHELM LEPPAK;ARTHUR KLAESENER
发明人
LEPPAK WILHELM;HOELTER HEINZ
分类号
E21F13/04
主分类号
E21F13/04
代理机构
代理人
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