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经营范围
发明名称
SEALING DEVICE
摘要
申请公布号
EP2002080(A1)
申请公布日期
2008.12.17
申请号
EP20070747571
申请日期
2007.03.21
申请人
BJOERGUM MEKANISKE AS
发明人
BJOERGUM, STIG, OVE
分类号
E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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