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发明名称
VORRICHTUNG FUER DEN VERBAU VON BAUGRUBEN MIT RAMMTRAEGERN UND DIELEN.
摘要
申请公布号
DE6603256(U)
申请公布日期
1969.09.18
申请号
DE19660003256U
申请日期
1968.08.30
申请人
WILHELM SCHAEFER
发明人
WILHELM SCHAEFER
分类号
主分类号
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