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发明名称
Tetningsanordning
摘要
申请公布号
NO20061308(A)
申请公布日期
2007.09.24
申请号
NO20060001308
申请日期
2006.03.23
申请人
BJORGUM MEKANISKE AS
发明人
BJORGUM STIG OVE
分类号
E21B33/12
主分类号
E21B33/12
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