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发明名称
Verfahren zur Verringerung der Staubbildung beim Blasversatz
摘要
申请公布号
AT239728(B)
申请公布日期
1965.04.26
申请号
AT19620004312
申请日期
1962.05.25
申请人
HUBERT LICHTENBERG & CO.
发明人
分类号
E21F5/06;E21F15/00
主分类号
E21F5/06
代理机构
代理人
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