发明名称 ANGLED MANHOLE SEALING BAND AND METHOD FOR USE
摘要 The invention relates to a device and method for sealing a manhole structure. A band with a relatively rigid angled corner engages the upper margin of a manhole structure. Adhesives may also be used with the band to enhance the seal with the manhole structure.
申请公布号 US2009074509(A1) 申请公布日期 2009.03.19
申请号 US20080234175 申请日期 2008.09.19
申请人 SSI PARTNERSHIP LLC 发明人 ESS PAUL H.
分类号 E02D29/14 主分类号 E02D29/14
代理机构 代理人
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