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发明名称
BOTH DERECTION TYPE'S PIPE COUPLING DEVICE USING EXPANDABLE PROMINENCE
摘要
申请公布号
KR101000666(B1)
申请公布日期
2010.12.10
申请号
KR20080036818
申请日期
2008.04.21
申请人
发明人
分类号
F16L21/06;F16L21/08
主分类号
F16L21/06
代理机构
代理人
主权项
地址
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