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发明名称
BOHRKOPF MIT PLANETENGETRIEBE UND EINFACHEM BOHRGESTAENGE
摘要
申请公布号
DE3445492(A1)
申请公布日期
1985.08.29
申请号
DE19843445492
申请日期
1984.12.13
申请人
TURMAG TURBO-MASCHINEN-AG NUESSE & GRAEFER
发明人
EBELING,WOLFGANG,DIPL.-ING.
分类号
E21B4/00;E21B4/16;E21B4/18;(IPC1-7):E21B4/18
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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