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发明名称
VORRICHTUNG FUER DAS LOESEN DER GEWINDE VON GESTAENGEROHRVERBINDUNGEN
摘要
申请公布号
DE7109146(U)
申请公布日期
1978.05.03
申请号
DE19710009146U
申请日期
1971.03.11
申请人
GRAEFER, ALBRECHT, DR.-ING. E.H. DIPL.-BERGING., 4322 SPROCKHOEVEL
发明人
分类号
(IPC1-7):E21C15/00
主分类号
(IPC1-7):E21C15/00
代理机构
代理人
主权项
地址
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