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发明名称
AUSBRUCHSVENTIL.
摘要
申请公布号
DE3885909(D1)
申请公布日期
1994.01.05
申请号
DE19883885909
申请日期
1988.05.13
申请人
PEDER SMEDVIG A/S, STAVANGER, NO
发明人
ASKELAND, RUNE, N-4020 HUNDVAG, NO;LARSEN, VIDAR, N-4060 KLEPPE, NO
分类号
E21B21/10;E21B33/127;E21B34/08;(IPC1-7):E21B33/06
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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