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经营范围
发明名称
COMPOSITE PILE
摘要
A pile consisting of a tapered bottom of polygon-shaped steel tubing and a t op cylindrical section of steel tubing spliced together to form a composite pile, which. after being driven is filled with concrete.
申请公布号
CA2270586(C)
申请公布日期
2008.09.09
申请号
CA19992270586
申请日期
1999.04.29
申请人
DOUGHERTY, JOHN J.;MERJAN, STANLEY
发明人
DOUGHERTY, JOHN J.;MERJAN, STANLEY
分类号
E02D5/22;E02D5/38;E02D5/48;E02D5/66
主分类号
E02D5/22
代理机构
代理人
主权项
地址
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