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发明名称
Gewellte nachgiebige Auskleidung aus Stahl oder Schmiedeeisen bei Bergwerksschaechten
摘要
申请公布号
DE615181(C)
申请公布日期
1935.06.29
申请号
DENDATW088762D
申请日期
申请人
WESTRHEINISCHE TIEFBOHR- UND SCHACHTBAU-GES.M.B.H.;WESTRHEINISCHE TIEFBOHR- UND SCHACHTBAU-GES.M.B.H.
发明人
分类号
E21D5/10
主分类号
E21D5/10
代理机构
代理人
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地址
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