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发明名称
Coupler of main pipe and branch pipe for drain pipe
摘要
申请公布号
KR20110011850(U)
申请公布日期
2011.12.23
申请号
KR20100006404U
申请日期
2010.06.17
申请人
发明人
分类号
F16L41/04;E03F3/04;F16L41/06;F16L41/08
主分类号
F16L41/04
代理机构
代理人
主权项
地址
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