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经营范围
发明名称
PROTETOR CONTRA EXPLOSOES
摘要
申请公布号
BR8807053(A)
申请公布日期
1989.10.31
申请号
BR1988PI07053
申请日期
1988.05.13
申请人
PEDER SMEDVIG A/S
发明人
RUNE ASKELAND;VIDAR LARSEN
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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