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发明名称
SOCKET FOR CONNECTING OF DOUBLE WALLED PIPE AND INSTALLING METHOD THEREOF
摘要
申请公布号
KR100696447(B1)
申请公布日期
2007.03.20
申请号
KR20040028081
申请日期
2004.04.23
申请人
发明人
分类号
E03F3/04
主分类号
E03F3/04
代理机构
代理人
主权项
地址
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