The plastic multi-wall pipe for weak subgrade,申请号KR20070013723U-传众专利搜索

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发明名称	The plastic multi-wall pipe for weak subgrade
摘要
申请公布号	KR20070001062(U)	申请公布日期	2007.10.04
申请号	KR20070013723U	申请日期	2007.08.16
申请人		发明人
分类号	F16L9/12;F16L11/24	主分类号	F16L9/12
代理机构		代理人
主权项
地址

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