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经营范围
发明名称
Piling
摘要
A concrete pile fitted with a special slightly tapered concrete tip of larger area. The tip has a central open socket for receiving concrete poured in after the pile is in place.
申请公布号
US4199277(A)
申请公布日期
1980.04.22
申请号
US19780959630
申请日期
1978.11.13
申请人
MERJAN, STANLEY
发明人
MERJAN, STANLEY
分类号
E02D5/30;E02D5/72;(IPC1-7):E02D5/30;E02D5/48;E02D5/50
主分类号
E02D5/30
代理机构
代理人
主权项
地址
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