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发明名称
Method of and devices for making concrete piles
摘要
申请公布号
GB325044(A)
申请公布日期
1930.02.13
申请号
GB19280036321
申请日期
1928.12.10
申请人
ERNST LORENZ
发明人
分类号
E02D5/44
主分类号
E02D5/44
代理机构
代理人
主权项
地址
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