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发明名称
Bohrer
摘要
申请公布号
DE4401914(C2)
申请公布日期
1996.06.27
申请号
DE19944401914
申请日期
1994.01.24
申请人
GEBRUEDER HELLER DINKLAGE GMBH, 49413 DINKLAGE, DE
发明人
KERSTEN, HEINRICH, DIPL.-ING. (FH), 27283 VERDEN, DE;PRECHT, HARTMUT, DIPL.-ING. (FH), 49413 DINKLAGE, DE
分类号
E21B10/44;E21B17/22;(IPC1-7):B28D1/14
主分类号
E21B10/44
代理机构
代理人
主权项
地址
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