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发明名称
Tower construction
摘要
申请公布号
US1806459(A)
申请公布日期
1931.05.19
申请号
US19290343075
申请日期
1929.02.27
申请人
RITER-CONLEY MANUFACTURING COMPANY
发明人
HILL HAROLD O.
分类号
E02D27/42
主分类号
E02D27/42
代理机构
代理人
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地址
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