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发明名称
BUILD-UP PREFABRICATED PILES AND METHOD OF DRIVING THEM INTO SOIL
摘要
申请公布号
PL149952(B1)
申请公布日期
1990.04.30
申请号
PL19850254936
申请日期
1985.08.08
申请人
发明人
分类号
E02D;E02D5/30;(IPC1-7):E02D5/30
主分类号
E02D
代理机构
代理人
主权项
地址
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