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发明名称
VERFAHREN ZUR HERSTELLUNG EINES DOPPELKERNROHRSTABILISATORS
摘要
申请公布号
DD158714(A3)
申请公布日期
1983.02.02
申请号
DD19800219117
申请日期
1980.02.19
申请人
VERSECK,ECKARD,DD;VON ECKERN,VOLKER,DD;SCHRADER,FRIEDHELM,DD;SCHELLIN,WOLFGANG,DD;GRAFE,WERNER,DD
发明人
VERSECK,ECKARD,DD;VON ECKERN,VOLKER,DD;SCHRADER,FRIEDHELM,DD;SCHELLIN,WOLFGANG,DD;GRAFE,WERNER,DD
分类号
E21B25/00;(IPC1-7):E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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