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发明名称
Gestaengerohrverbindung
摘要
申请公布号
DE838433(C)
申请公布日期
1952.05.08
申请号
DE1941D001360
申请日期
1941.08.09
申请人
RHEINISCHE ROEHRENWERKE AKTIENGESELLSCHAFT
发明人
KEULERS JAKOB;TICHY GUSTAV
分类号
E21B17/042;F16L15/00
主分类号
E21B17/042
代理机构
代理人
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