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发明名称
ROHRFOERMIGER VERLORENER BOHRLOCHVERSCHLUSS
摘要
申请公布号
DE2903137(A1)
申请公布日期
1980.08.07
申请号
DE19792903137
申请日期
1979.01.27
申请人
BERGWERKSVERBAND GMBH
发明人
GLAESMANN,OTTO-ERNST;MEYER,FRANK,DIPL.-CHEM.DR.;MARSCH,WALTER,DIPL.-ING.
分类号
E02D3/12;E21B33/128;E21B33/129;(IPC1-7):E21D20/02
主分类号
E02D3/12
代理机构
代理人
主权项
地址
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