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发明名称
Methods, apparatus and system for drain tiles
摘要
An improved drain tile system and methods of installation that allow superior water removal with minimal time and labor and with reduced damage to planted vegetation.
申请公布号
US2008025795(A1)
申请公布日期
2008.01.31
申请号
US20060494883
申请日期
2006.07.28
申请人
PURNELL CLIFF
发明人
PURNELL CLIFF
分类号
E02B13/00
主分类号
E02B13/00
代理机构
代理人
主权项
地址
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